There is also additional background information for this table group.
Contents for Group
NA: Not applicable.
X: The measure is undefined (for instance, the percentage of a nonexistent
B: The percentage has been suppressed because it is statistically unreliable.
Percentages are not shown when the denominator is less than 75 thousand.
Poverty in the United States is measured by comparing family income with one of
48 poverty thresholds--the dollar amounts used to determine who is poor.
The poverty thresholds vary by size of family and the ages of the members. See
www.census.gov/hhes/poverty/povdef.html for further explanation.
1 Universe: All people except unrelated individuals under
age 15 (such as foster children). Since the Current
Population Survey asks income questions only to people age
15 and over, if a child under age 15 is not part of a
family by birth, marriage, or adoption, we do not know
their income and cannot determine whether or not they are
Those people are excluded from the totals so as not to
affect the percentages.
2 People in families: People who are related to the
householder by birth, marriage, or adoption. People who
are related to each other but not to the householder
are counted elsewhere (usually as unrelated subfamilies).
3 People in unrelated subfamilies: People who are not
related to the householder, but who are related to each
other, either as a married couple or as a parent-child
relationship with an unmarried child under 18.
4 Unrelated individuals: People who are not in primary
families (the householder's family) or unrelated
5 Ratio of income to poverty: People and families are
classified as poor if their income is less than their
poverty threshold. If their income is less than
half their poverty threshold, they are severely poor
(below 50% of poverty); less than the threshold itself,
they are poor (below 100% of poverty); less than 1.25
times the threshold, below 125% of poverty, and so on.
The greater the ratio of income to poverty, the more
people fall under the category, because higher ratios
include more people with higher incomes.
6 Percentage below x% of poverty: The number below x% of the
poverty threshold, divided by the number in "all income
levels," then multiplied by 100. The poverty rate is the
percentage below 100% of the poverty threshold.
7 Householder's poverty status: The poverty threshold and
income were based only on his or her family members, if
any were present. Anyone not related to the householder
had no impact on the householder's poverty status.
8 Householders living alone: Does not include people in
"group quarters " (such as halfway houses or boarding
houses) who happen to be living alone.
9 People in families with related children: People living in
a family where at least one member is a related child--a
person under 18 who is related to the householder but is
not the householder or spouse.
10 Primary families (the householder's family): Excludes
people who are not related to the householder.
11 In married-couple families the householder may be either
the husband or the wife.
12 Refers to the race or ethnicity of the householder.
People within the same family may be of different races or
13 Families with related children: A family in which at least
one member is a related child--a person under 18 who is
related to the householder but is not the householder or
14 Related children: People under 18 who are related to the
householder, but who are not themselves the householder or
the householder's spouse.
15 Own children: Sons and daughters, including stepchildren
and adopted children, of the householder.
16 Work experience: Refers to the longest job held in the
previous calendar year. The work experience categories
are based on the number of weeks worked, and the number of
hours worked per week.
Full-time year-round: Worked at least 35 hours per week,
for at least 50 weeks last year (including paid sick leave
Not full-time year-round: Worked for at least 1 week last
year, but for less than 50 weeks, or less than 35 hours
per week, or both.
17 Tallies by age and sex include people age 16 and older.
Tallies by household relationship only include ages 16 to
18 Includes related children ages 16 and 17 and own children
18 years and over.
19 Standard error: A measure of an estimate's variability.
The greater the standard error in relation to the size of
the estimate, the less reliable the estimate.
20 Mean income deficit: Obtained by adding up the deficits
across all poor families, then dividing by the number of
Mean income surplus: Obtained by adding up the surpluses
across all nonpoor families, then dividing by the number
of nonpoor families.
21 Median income deficit or surplus: The median deficit is
the dollar amount that divides the number of poor families
into two equal groups: one-half of the families have a
smaller deficit than the median, and the other half have a
greater deficit than the median. If all poor families
were lined up by the size of their income deficit, the
median deficit would be in the middle. Similarly, the
median surplus divides nonpoor families into two equal
22 Deficit or surplus per capita: Deficit per capita was
obtained by adding up the deficits across all poor
families, then dividing by the number of poor people in
those families. Surplus per capita was obtained in a
similar way, but for nonpoor people.
23 Based on the highest grade completed. Applies only to
people age 15 and older. People under 15 are included in
the totals only.
24 Natives are defined as people born in the United States,
Puerto Rico, or an outlying area of the United States, and
those born in a foreign country but who had at least one
parent who was a U.S. citizen. All others are foreign-
born regardless of date of entry into the United States or
citizenship status. The Current Population Survey, the
source of these data, does not extend to Puerto Rico or to
the outlying areas of the United States, and thus those
living there are excluded from these poverty statistics.
25 Enrollment: Attendance or enrollment in a high school,
college or university. Defined only for people ages 16-24
who are not serving in the armed forces. Enrollment or
attendance as of the week prior to interview. People
under age 16, people 16 to 24 serving in the armed forces,
and people 25 and over are shown in the totals only.
26 The averages include householders with and without
27 The averages only include householders with children.
28 When assigning poverty thresholds, the number of "related
children" is the number of people in the family under 18,
who are related to the family reference person but are not
themselves the family reference person or his or her
29 Weighted average poverty thresholds: Some data users want
to get a general sense of the "poverty line," rather than
the full detail of all 48 thresholds cross-classified by
size of family and number of related children. These
weighted average thresholds provide that summary, but they
are not used to compute poverty data. They are "weighted"
averages because within a family size, some child/adult
combinations occur more frequently than others.
Therefore, the weighted average thresholds take into
account how many families each threshold applies to when
the Census Bureau computes the number of poor.
30 Totals show the number of people who currently live in
census tracts that had poverty rates of 20 percent or more
(poverty areas), 30 percent or more, 40 percent or more,
and less than 20 percent (outside of poverty areas),
according to the 1990 Census of Population and Housing.
Among those people, "below poverty level" shows the
number and percent who were poor in the current year.
Census tract: a small geographic area usually containing
2,500 to 8,000 people.
31 Region and division: The four regions of the country are
Northeast: New England Division (Maine, New Hampshire,
Vermont, Massachusetts, Rhode Island,
Middle Atlantic Division (New York, New
Midwest: East North Central Division (Ohio, Indiana,
Illinois, Michigan, Wisconsin)
West North Central Division (Minnesota, Iowa,
Missouri, North Dakota, South Dakota,
South: South Atlantic Division (Delaware, Maryland,
District of Columbia, Virginia, West Virginia,
North Carolina, South Carolina, Georgia,
East South Central Division (Kentucky,
Tennessee, Alabama, Mississippi)
West South Central Division (Arkansas,
Louisiana, Oklahoma, Texas)
West: Mountain Division (Montana, Idaho, Wyoming,
Colorado, New Mexico, Arizona, Utah, Nevada)
Pacific Division (Washington, Oregon,
California, Alaska, Hawaii)
32 Receipt of Assistance: People who lived with someone (a
nonrelative or a relative) who received aid. Not every
person tallied here received the aid themselves.
33 Earnings below weighted average poverty threshold for a 4-
person family: Identifies how many people do not earn
enough at their job, or if they are self-employed, their
farm or business, to keep a family of 4 out of poverty,
even when their earnings were combined with their other
family members' earnings.
This measure is different from the official poverty
measure, which uses all sources of money income (except
capital gains), not just earnings, and uses thresholds
that vary by family size.
34 A.O.I.C.: "Alone or in combination" with one or more
New Race Categories: The 2003 CPS asked respondents to
choose one or more races. White alone refers to people who
reported White and did not report any other race category.
The use of this single-race population does not imply that
it is the preferred method of presenting or analyzing
data. The Census Bureau uses a variety of approaches.
Information on people who reported more than one race,
such as "White and American Indian and Alaska Native" or
"Asian and Black or African American," is available from
Census 2000 through American FactFinder. About 2.6
percent of people reported more than one race in 2000.
Black alone refers to people who reported Black and did
not report any other race category.
Asian alone refers to people who reported Asian and did
not report any other race category.
Source: U.S. Census Bureau, Current Population Survey, 2004 Annual Social and Economic Supplement.
Source: U.S. Census Bureau
Contact: Housing and Household Economic Statistics Information Staff at (301)763-3242
Last revised: July 9, 2004