| Age and Sex (01) |
| Age |
Compare with Caution - The entire population continually ages into
older age groups over time and babies fill in the youngest age group. So, the population of
a certain age is made up of a completely different group of people in 2000 and 2006. Since
populations occasionally experience booms/increases and busts/decreases in births, deaths,
or migration (for example, the postwar Baby Boom from 1946-1964), one should not necessarily
expect that the population in an age group in Census 2000 should be similar in size or
proportion to the population in the same age group in the 2006 ACS. For example, Baby
Boomers were age 36 to 54 in Census 2000 while they were age 42 to 60 in the 2006 ACS. So,
the age group 55 to 59 would show a considerable increase in population when comparing Census
2000 data with the 2006 ACS data. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have age
distributions that are very different from the household population. The inclusion of the
GQ population could therefore have a noticeable impact on the age distribution. This is
particularly true for areas with a substantial GQ population. |
| Sex |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have sex
distributions that are very different from the household population. The inclusion of the
GQ population could therefore have a noticeable impact on the sex distribution. This is
particularly true for areas with a substantial GQ population. |
| Race (02) |
| Race |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have race
distributions that are very different from the household population. The inclusion of the
GQ population could therefore have a noticeable impact on the race distribution. This is
particularly true for areas with a substantial GQ population. |
| Hispanic Origin (03) |
| Hispanic or Latino Origin |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have Hispanic
or Latino Origin distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the Hispanic or
Latino Origin distribution. This is particularly true for areas with a substantial GQ
population. |
| Ancestry (04) |
| Ancestry |
Compare - Ancestry is the only item for which a "not reported"
category is published since missing ancestries are never assigned or allocated. The extent
of missing ancestry answers was higher in Census 2000 than in the 2006 ACS. The difference
in the level of response may contribute to the difference in the two distributions. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have ancestry
distributions that are very different from the household population. The inclusion of the
GQ population could therefore have a noticeable impact on the ancestry distribution. This is
particularly true for areas with a substantial GQ population. |
| Foreign Born; Citizenship; Year of Entry; Nativity (05) |
| Citizenship Status |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have
citizenship status distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the citizenship
status distribution. This is particularly true for areas with a substantial GQ population. |
| Nativity |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have nativity
distributions that are very different from the household population. The inclusion of the GQ
population could therefore have a noticeable impact on the nativity distribution. This is
particularly true for areas with a substantial GQ population. |
| Year of Entry |
Compare - Census 2000 represent data collected as of April 1, 2000
and thus the "2000" year of entry category accounts for the first quarter (Jan-Mar) in 2000
only. The 2006 ACS represent data collected throughout the entire year and thus the "2000"
year of entry category accounts for the entire year of 2000. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have year of
entry distributions that are very different from the household population. The inclusion of
the GQ population could therefore have a noticeable impact on the the year of entry
distribution. This is particularly true for areas with a substantial GQ population. |
| Place of Birth (06) |
| Place of Birth |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have place of
birth distributions that are very different from the household population. The inclusion of
the GQ population could therefore have a noticeable impact on the the place of birth
distribution. This is particularly true for areas with a substantial GQ population. |
| Residence 1 year ago; Migration (07) |
| Residence 1 year ago (Migration) |
Do Not Compare - The 2006 ACS asked for residence 1 year ago
whereas Census 2000 asked for residence 5 years ago. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have
residence one year ago (migration) distributions that are very different from the household
population. The inclusion of the GQ population could therefore have a noticeable impact on
the residence one year ago (migration) distribution. This is particularly true for areas
with a substantial GQ population. |
| Journey to Work; Workers; Commuting (08) |
| Means of Transportation to Work |
Compare - The 2006 ACS excludes taxicabs in the tabulation category
of "public transportation" and includes them in the category "taxicab, motocycle, bicycle or
other means." However, Census 2000 includes taxicabs in the "public transportation"
tabulation category. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have means of
transportation to work distributions that are very different from the household population.
The inclusion of the GQ population could therefore have a noticeable impact on the means of
transportation to work distribution. This is particularly true for areas with a substantial
GQ population. |
| Place of Work |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have place of
work distributions that are very different from the household population. The inclusion of
the GQ population could therefore have a noticeable impact on the place of work distribution.
This is particularly true for areas with a substantial GQ population. |
| Private Vehicle Occupancy |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have private
vehicle occupancy distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the private
vehicle occupancy distribution. This is particularly true for areas with a substantial GQ
population. |
| Time Leaving Home |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have time
leaving home distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the time leaving
home distribution. This is particularly true for areas with a substantial GQ population. |
| Travel Time to Work |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have travel
time to work distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the travel time
to work distribution. This is particularly true for areas with a substantial GQ population. |
| Children; Household Relationship (09) |
| Relationship to Householder |
Compare - The 2006 ACS used a joint relationship/marital status
edit and Census 2000 did not. Also, Census 2000 provided more response categories than
the 2006 ACS. |
Do Not Compare - The weighting methodology in the 2006 ACS was
modified in order to ensure consistent estimates of occupied housing units, households, and
householders. In addition, the modification reduces the difference between estimates of
spouses and married-couple households and the difference between estimates of unmarried
partners and unmarried-partner households. In general, this shifts the estimates of
householders, spouses, and unmarried partners downward as it shifts the estimates of other
members of the household upward. For more information on the weighting methodology changes
see the 2006 User Notes. (pdf) |
| Grandparent; Grandchildren (10) |
| Grandparents as Caregivers |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have
grandparents as caregivers distributions that are very different from the household
population. The inclusion of the GQ population could therefore have a noticeable impact on
the grandparents as caregivers distribution. This is particularly true for areas with a
substantial GQ population. |
| Household Type; Family Type; Subfamilies (11) |
| Household/Family Type |
Compare |
Compare with Caution - The weighting methodology in the 2006 ACS
was modified in order to ensure consistent estimates of occupied housing units, households,
and householders. In addition, the modification reduces the difference between estimates of
spouses and married-couple households and the difference between estimates of unmarried
partners and unmarried-partner households. These shifts in the distribution of
householders can impact estimates of household type and family type as a result. For more
information on the weighting methodology changes see the 2006 User Notes. (pdf) |
| Subfamilies |
Compare with Caution - Census 2000 had more detailed relationship
categories used to derive estimates of subfamilies than the 2006 ACS. |
Do Not Compare - The weighting methodology in the 2006 ACS was
modified in order to ensure consistent estimates of occupied housing units, households, and
householders. In addition, the modification reduces the difference between estimates of
spouses and married-couple households and the difference between estimates of unmarried
partners and unmarried-partner households. In general, this shifts the estimates of
householders, spouses, and unmarried partners downward as it shifts the estimates of other
members of the household, including spouses in married-couple subfamilies, upward. For more
information on the weighting methodology changes see the 2006 User Notes. (pdf) |
| Marital Status (12) |
| Marital Status |
Compare - The 2006 ACS used a joint relationship/marital status
edit and Census 2000 did not. |
Compare with Caution - The weighting methodology in the 2006 ACS was
modified in order to ensure consistent estimates of occupied housing units, households, and
householders. In addition, the modification reduces the difference between estimates of
spouses and married-couple households and the difference between estimates of unmarried
partners and unmarried-partner households. The impact is most noticeable for the "married,
spouse present" category. For more information on the weighting methodology changes see
the 2006 User Notes. (pdf)
Also, the Group Quarters (GQ) population is included in the 2006 ACS and not in the 2005
ACS. All married people in GQs are coded as "married, spouse absent." |
| Fertility (13) |
| Fertility |
Do Not Compare - The question was not asked in Census 2000. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have
fertility distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the fertility
distribution. This is particularly true for areas with a substantial GQ population. |
| School Enrollment (14) |
| Type of School & School Enrollment |
Compare - The 2006 ACS reference period was 3 months preceding the
date of interview, while the Census 2000 reference period was any time since February 1,
2000. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have type of
school and school enrollment distributions that are very different from the household
population. The inclusion of the GQ population could therefore have a noticeable impact on
the type of school and school enrollment distribution. This is particularly true for areas
with a substantial GQ population. |
| Educational Attainment (15) |
| Educational Attainment |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have
educational attainment distributions that are very different from the household population.
The inclusion of the GQ population could therefore have a noticeable impact on the education
attainment distribution. This is particularly true for areas with a substantial GQ
population. |
| Language Spoken at Home and Ability to Speak English (16) |
| Ability to Speak English |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have ability
to speak English distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the ability to
speak English distribution. This is particularly true for areas with a substantial GQ
population. |
| Language Spoken at Home |
Compare |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have language
spoken at home distributions that are different from the household population. The inclusion
of the GQ population could therefore have a noticable impact on the language spoken at home
distribution. This is particularly true for areas with a substantial GQ population. |
| Poverty (17) |
| Poverty Status of
Families and People in Families |
Compare with Caution - The ACS collects data throughout the year on
an on-going, monthly basis and asks for a respondent's income over the "past 12 months."
Census 2000, however, collected the income data for a fixed period of time -- "during 1999"
(the last calendar year). In a comparison study between Census 2000 income data and the 2000
ACS, income collected in Census 2000 was found to be about 4 percent higher than that in the
2000 ACS. For more information on the differences of income in the ACS and Census 2000, see
www.census.gov/acs/www/Downloads/ACS/ASA_nelson.pdf [PDF].
The Census Bureau recommends using CPI-U-RS adjustment factors published annually by the
Bureau of Labor Statistics (BLS) to adjust 1999 median, mean, and per capita income dollar
amounts shown in Summary File 3 to 2006 dollars by multiplying the 1999 dollar amounts by
the CPI-U-RS factor of 1.21005313. For CPI-U-RS inflation adjustment factors for other years
see: www.census.gov/hhes/www/income/income05/cpiurs.html
Furthermore, direct comparisons of income and earnings distributions between Census 2000 and
the 2006 ACS are not possible due to inflation. Users interested in making distribution
comparisons need to inflation adjust individual income records using the Public Use Microdata
Samples (PUMS) from Census 2000. |
Compare with Caution - The weighting methodology in the 2006 ACS was
modified in order to ensure consistent estimates of occupied housing units, households, and
householders. In addition, the modification reduces the difference between estimates of
spouses and married-couple households and the difference between estimates of unmarried
partners and unmarried-partner households. Therefore, this modification may impact other
family-level analysis. For more information on the weighting methodology changes see
the 2006 User Notes. (pdf) |
| Poverty Status of
All People in the Poverty Universe |
Compare with Caution - The ACS collects data throughout the year on
an on-going, monthly basis and asks for a respondent's income over the "past 12 months."
Census 2000, however, collected the income data for a fixed period of time -- "during 1999"
(the last calendar year). In a comparison study between Census 2000 income data and the
2000 ACS, income collected in Census 2000 was found to be about 4 percent higher than that
in the 2000 ACS. For more information on the differences of income in the ACS and Census
2000, see www.census.gov/acs/www/Downloads/ACS/ASA_nelson.pdf [PDF].
The Census Bureau recommends using CPI-U-RS adjustment factors published annually by the
Bureau of Labor Statistics (BLS) to adjust 1999 median, mean, and per capita income dollar
amounts shown in Summary File 3 to 2006 dollars by multiplying the 1999 dollar amounts by
the CPI-U-RS factor of 1.21005313. For CPI-U-RS inflation adjustment factors for other years
see: www.census.gov/hhes/www/income/income05/cpiurs.html.
Furthermore, direct comparisons of income and earnings distributions between Census 2000 and
the 2006 ACS are not possible due to inflation. Users interested in making distribution
comparisons need to inflation adjust individual income records using the Public Use
Microdata Samples (PUMS) from Census 2000. |
Do Not Compare - The Group Quarters (GQ) population is included in
the 2006 ACS and not included in the 2005 ACS. The part of the group quarters population in
the poverty universe is many times more likely to be in poverty than people living in
households. Direct comparisons would likely result in erroneous conclusions about changes
in the poverty status of all people in the poverty universe, thus comparisons cannot be
made. |
| Disability (18) |
| Disability Going Out / Working |
Do Not Compare - The 2006 ACS disability questions are different from
the Census 2000 disability questions, thus comparisons cannot be made. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have
disability distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the disability
distribution. This is particularly true for areas with a substantial GQ population. |
| Disability Learning / Dressing |
Do Not Compare - The 2006 ACS disability questions are different from
the Census 2000 disability questions, thus comparisons cannot be made. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have
disability distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the disability
distribution. This is particularly true for areas with a substantial GQ population. |
| Disability Vision / Hearing / Physical |
Do Not Compare - The 2006 ACS disability questions are different from
the Census 2000 disability questions, thus comparisons cannot be made. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations have
disability distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the disability
distribution. This is particularly true for areas with a substantial GQ population. |
| Income (Households and Families) (19) |
| Household and Family Incomes |
Compare with Caution - The ACS collects data throughout the year on
an on-going, monthly basis and asks for a respondent's income over the "past 12 months."
Census 2000, however, collected the income data for a fixed period of time -- "during 1999"
(the last calendar year). In a comparison study between Census 2000 income data and the 2000
ACS, income collected in Census 2000 was found to be about 4 percent higher than that in the
2000 ACS. For more information on the differences of income in the ACS and Census 2000, see
www.census.gov/acs/www/Downloads/ACS/ASA_nelson.pdf [PDF].
The Census Bureau recommends using CPI-U-RS adjustment factors published annually by the
Bureau of Labor Statistics (BLS) to adjust 1999 median, mean, and per capita income dollar
amounts shown in Summary File 3 to 2006 dollars by multiplying the 1999 dollar amounts by the
CPI-U-RS factor of 1.21005313. For CPI-U-RS inflation adjustment factors for other years see:
www.census.gov/hhes/www/income/income05/cpiurs.html.
Furthermore, direct comparisons of income and earnings distributions between Census 2000 and
the 2006 ACS are not possible due to inflation. Users interested in making distribution
comparisons need to inflation adjust individual income records using the Public Use Microdata
Samples (PUMS) from Census 2000. |
Compare with Caution - The weighting methodology in the 2006 ACS was
modified in order to ensure consistent estimates of occupied housing units, households, and
householders. In addition, the modification reduces the difference between estimates of
spouses and married-couple households and the difference between estimates of unmarried
partners and unmarried-partner households. These shifts in the distribution of householders
can impact estimates of household and family incomes as a result. For more information on
the weighting methodology changes see the 2006 User Notes [PDF]. |
| Sources of Income (households) |
Compare with Caution - The ACS collects data throughout the year on
an on-going, monthly basis and asks for a respondent's income over the "past 12 months."
Census 2000, however, collected the income data for a fixed period of time -- "during 1999"
(the last calendar year). In a comparison study between Census 2000 income data and the 2000
ACS, income collected in Census 2000 was found to be about 4 percent higher than that in the
2000 ACS. For more information on the differences of income in the ACS and Census 2000, see
www.census.gov/acs/www/Downloads/ACS/ASA_nelson.pdf [PDF].
The Census Bureau recommends using CPI-U-RS adjustment factors published annually by the
Bureau of Labor Statistics (BLS) to adjust 1999 median, mean, and per capita income dollar
amounts shown in Summary File 3 to 2006 dollars by multiplying the 1999 dollar amounts by the
CPI-U-RS factor of 1.21005313. For CPI-U-RS inflation adjustment factors for other years see:
www.census.gov/hhes/www/income/income05/cpiurs.html.
Furthermore, direct comparisons of income and earnings distributions between Census 2000 and
the 2006 ACS are not possible due to inflation. Users interested in making distribution
comparisons need to inflation adjust individual income records using the Public Use Microdata
Samples (PUMS) from Census 2000. |
Compare |
| Earnings and Income (Individuals) (20) |
| Per Capita Income,
Earnings (people), and Income (people) |
Compare with Caution - The ACS collects data throughout the year on
an on-going, monthly basis and asks for a respondent's income over the "past 12 months."
Census 2000, however, collected the income data for a fixed period of time -- "during 1999"
(the last calendar year). In a comparison study between Census 2000 income data and the 2000
ACS, income collected in Census 2000 was found to be about 4 percent higher than that in the
2000 ACS. For more information on the differences of income in the ACS and Census 2000, see
www.census.gov/acs/www/Downloads/ACS/ASA_nelson.pdf [PDF].
The Census Bureau recommends using CPI-U-RS adjustment factors published annually by the
Bureau of Labor Statistics (BLS) to adjust 1999 median, mean, and per capita income dollar
amounts shown in Summary File 3 to 2006 dollars by multiplying the 1999 dollar amounts by the
CPI-U-RS factor of 1.21005313. For CPI-U-RS inflation adjustment factors for other years see:
www.census.gov/hhes/www/income/income05/cpiurs.html.
Furthermore, direct comparisons of income and earnings distributions between Census 2000 and
the 2006 ACS are not possible due to inflation. Users interested in making distribution
comparisons need to inflation adjust individual income records using the Public Use Microdata
Samples (PUMS) from Census 2000. |
Compare with Caution - The weighting methodology in the 2006 ACS was
modified in order to ensure consistent estimates of occupied housing units, households, and
householders. In addition, the modification reduces the difference between estimates of
spouses and married-couple households and the difference between estimates of unmarried
partners and unmarried-partner households. In general, this shifts the estimates of
householders, spouses, and unmarried partners who are typically the higher wage earners
downward as it shifts the estimates of other members of the household upward. This shift
can lead to lower estimates of per capita income. For more information on the weighting
methodology changes see the 2006 User Notes. (pdf)
Also, the Group Quarters (GQ) population is included in the 2006 ACS and not included in the
2005 ACS. Many types of GQ populations have per capita income, earnings (people), and income
(people) distributions that are very different from the household population. The inclusion
of the GQ population in 2006 could, therefore, noticeable change the per capita income,
earnings (people), and income (people) distribution compared to 2005. This is particularly
true for areas with a substantial GQ population. |
| Veteran Status (21) |
| Period of Military Service |
Compare - For the 2006 ACS, the period of military service categories
were updated to: 1) include the most recent period "September 2001 or later;" 2) list all
"peace time" periods without showing a date-breakup in the list; and 3) update the Korean War
and World War II dates to match the official dates as listed in US Code, Title 38. While the
response categories differ slightly from those in Census 2000, data from the two questions
can still be compared to one another. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations may have
period of military service distributions that are very different from the household
population. The inclusion of the GQ population could therefore have a noticeable impact on
the period of military service distribution. This is particularly true for areas with a
substantial GQ population. |
| Veteran Status |
Compare - The 2006 ACS has two separate questions, wheras in Census
2000, it was a two part question. However, the actual questions remain the same. |
Compare with Caution - The Group Quarters (GQ) population is included
in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations may have
veteran status distributions that are very different from the household population. The
inclusion of the GQ population could therefore have a noticeable impact on the veteran status
distribution. This is particularly true for areas with a substantial GQ population. |
| Food Stamps (22) |
| Food Stamp Benefit |
Do Not Compare - The question was not asked in Census 2000 thus
comparions cannot be made. |
Compare with Caution - The Group Quarters (GQ) population is
included in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations
have Food Stamp benefit distributions that are very different from the household population.
The inclusion of the GQ population could therefore have a noticeable impact on the Food
Stamp benefit distribution. This is particularly true for areas with a substantial GQ
population. |
| Employment Status; Work Experience; Labor Force (23) |
| Employment Status |
Compare with Caution - The reference periods are different due to
year-round ACS data collection. The ACS reference period is the week prior to the
respondent completing the interview, or the field representative conducting the interview.
Because questionnaires are mailed-out and field interviews are conducted throughout the
year, there is a revolving reference period. For Census 2000, the reference period was the
week prior to Census Day (April 1, 2000).
The Census 2000 Summary File 3 (SF3) labor force data for some places where colleges are
located appear to overstate the estimates of people in the labor force, the unemployed, and
the percent unemployed because of data capture errors. |
Compare with Caution - The Group Quarters (GQ) population is
included in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations
may have employment status distributions that are very different from the household
population. The inclusion of the GQ population could therefore have a noticeable impact on
the employment status distribution. This is particularly true for areas with a substantial
GQ population. |
| Hours Worked |
Compare - The 2006 ACS reference period is 12 months preceding the
date of interview, while the Census 2000 reference period was the 1999 calendar year. |
Compare with Caution - The Group Quarters (GQ) population is
included in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations
may have hours worked distributions that are very different from the household population.
The inclusion of the GQ population could therefore have a noticeable impact on the hours
worked distribution. This is particularly true for areas with a substantial GQ
population. |
| Weeks Worked |
Compare - The 2006 ACS reference period is 12 months preceding the
date of interview, while the Census 2000 reference period was the 1999 calendar year. |
Compare with Caution - The Group Quarters (GQ) population is
included in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations
may have weeks worked distributions that are very different from the household population.
The inclusion of the GQ population could therefore have a noticeable impact on the weeks
worked distribution. This is particularly true for areas with a substantial GQ
population. |
| Industry & Occupation; Class of Worker (24) |
| Class of Worker |
Compare with Caution - The Census 2000 tables use different
tabulation categories than the 2006 ACS. However, PUMS data for Census 2000 and the 2006
ACS may be compared. When avaiable, compare like universes. |
Compare with Caution - The Group Quarters (GQ) population is
included in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations
may have class of worker distributions that are very different from the household
population. The inclusion of the GQ population could therefore have a noticeable impact on
the class of worker distribution. In addition, all civilian employed people in GQs are
coded as non-institutionalized. |
| Industry & Occupation |
Compare with Caution - The 2006 ACS codes are based on the 2002
North American Industry Classification System (NAICS) and are 4-digit codes, whereas Census
2000 codes are based on the 1997 NAICS and were 3-digit codes. Codes and descriptions,
particularly within the Electronic Shopping, Internet Services, and Wholesale categories
changed. Also, the Census 2000 tables did not include the "full-time, year-round"
population and there were no median earnings Industry and Occupation tables. Thus,
comparisons cannot be made for this population or characteristic. |
Compare with Caution - The Group Quarters (GQ) population is
included in the 2006 ACS and not included in the 2005 ACS. Many types of GQ populations
may have industry and occupation distributions that are very different from the household
population. The inclusion of the GQ population could therefore have a noticeable impact on
the industry and occupation distribution. In addition, all civilian employed people in GQs
are coded as non-institutionalized. |
| Housing (25) |
| Bedrooms |
Compare |
Compare |
| Contract and Gross Rent |
Do Not Compare - For Census 2000, tables were not released for
total renter-occupied units. The universe in the 2006 ACS is "all housing units" wheras in
Census 2000 the universe was "specified renter-occupied housing units," thus comparisons
cannot be made. |
Compare |
| Cost of Utilities |
Compare |
Compare |
| Gross Rent as a Percentage of Household Income |
Do Not Compare - For Census 2000, tables were not released for
total renter-occupied units. The universe in the 2006 ACS is "all housing units" wheras in
Census 2000, the universe was "specified owner-occupied housing units," thus comparisons
cannot be made. |
Compare |
| House Heating Fuel |
Compare |
Compare |
| Kitchen Facilities |
Compare |
Compare |
| Monthly Rent |
Compare |
Compare |
| Mortgage Status |
Compare - With a mortgage/without a mortgage released in Census
2000 for both total owner-occupied units and specifed owner-occupied units. |
Compare |
| Occupants per Room |
Compare |
Compare |
| Owner Costs as a Percentage of Household Income |
Compare with Caution - For Census 2000, tables with full
distribution were released for total owner-occupied units but medians were not shown. When
available, compare like universes. |
Compare |
| Plumbing Facilities |
Compare |
Compare |
| Real Estate Taxes |
Do Not Compare - The universe in the 2006 ACS is "all housing units"
wheras in Census 2000, the universe was "specified owner-occupied housing units," thus
comparisons cannot be made. |
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| Rooms |
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| Selected Monthly Owner Costs |
Compare with Caution - For Census 2000, tables with full
distribution were released for total owner-occupied units but medians were not shown. When
available, compare like universes. |
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| Telephone Service |
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| Tenure |
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| Units in Structure |
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| Vacancy Status |
Compare with Caution - The tabulation category "Rented or sold, not
occupied" in Census 2000 is separated into two categories "Rented, not occupied" and "Sold,
not occupied" in the 2006 ACS. |
Compare with Caution - The weighting methodology in the 2006 ACS
was modified in order to ensure consistent estimates of occupied housing units, households,
and householders. Final estimates of housing units no longer agree with the independent
estimates of the Population Estimates Program. In general, estimates of vacant housing
units are higher in the 2006 ACS than in the 2005 ACS and estimates of occupied housing
units are lower in the 2006 ACS than in the 2005 ACS. For more information on the weighting
methodology changes see the 2006 User Notes. (pdf) |
| Value of Property |
Compare with Caution - The 2006 ACS has allows a write-in for
values over $250,000. For Census 2000, tables with full distribution, medians, and
aggregate values were released for specified owner-occupied units as well as total
owner-occupied units. When available, compare like universes. |
Compare with Caution - The weighting methodology in the 2006 ACS
was modified in order to ensure consistent estimates of occupied housing units, households,
and householders. In addition, the modification reduces the difference between estimates of
spouses and married-couple households and the difference between estimates of unmarried
partners and unmarried-partner households. These shifts in the distribution of householders
can impact the distribution of value of housing units as a result. For more information on
the weighting methodology changes see the 2006 User Notes. (pdf) |
| Vehicles Available |
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| Year Moved In |
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| Year Structure Built |
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| Group Quarters (26) |
| Group Quarters |
Compare with Caution - The total group quarters (GQ) population in
the 2006 ACS may not be comparable with Census 2000 because: 1) There are some Census 2000
GQ types that were out of scope in the 2006 ACS such as domestic violence shelters, soup
kitchens, regularly scheduled mobile food vans, targeted nonsheltered outdoor locations,
crews of maritime vessels and living quarters for victims of natural disasters. Also, there
are some Census 2000 GQ type categories that are no longer valid (residential care facility
providing "Protective Oversight," hospitals/wards for the chronically ill and
hospitals/wards for drug/alcohol abuse). The exclusion of these GQ types from the 2006 ACS
may result in a small bias in some ACS estimates to the extent that the excluded population
is different from the included population. 2) A sample of GQ facilities throughout the
United States and Puerto Rico were selected for the 2006 ACS. ACS controls the GQ sample
at the state level only. Therefore, for lower levels of geography, particularly when there
are relatively few GQs in a geographic area, the ACS estimate of the GQ population may vary
from the estimate from Census 2000. |
Do Not Compare - The Group Quarters population is included in the
2006 ACS and not included in the 2005 ACS, thus comparisons cannot be made. |
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