US Census Bureau
Skip top of page navigation

American Community Survey (ACS)


Skip top of page navigation
2001 Supplementary Survey Profile
Delaware County
Supplementary Survey 2001 Logo

TABLE 1. PROFILE OF GENERAL DEMOGRAPHIC CHARACTERISTICS
  Estimate Lower
Bound
Upper
Bound
Total population
529,418
*****
*****
SEX AND AGE
Male
251,467
249,375
253,559
Female
277,951
275,859
280,043
Under 5 years
32,199
31,866
32,532
5 to 9 years
39,723
35,398
44,048
10 to 14 years
35,948
31,569
40,327
15 to 19 years
33,919
31,741
36,097
20 to 24 years
30,417
27,686
33,148
25 to 34 years
65,479
61,620
69,338
35 to 44 years
88,470
85,206
91,734
45 to 54 years
77,558
74,895
80,221
55 to 59 years
23,889
20,251
27,527
60 to 64 years
23,803
20,237
27,369
65 to 74 years
39,650
38,309
40,991
75 to 84 years
30,929
27,862
33,996
85 years and over
7,434
4,959
9,909
 
Median age (years)
38.3
37.8
38.8
 
18 years and over
399,891
398,556
401,226
21 years and over
381,208
378,339
384,077
62 years and over
91,018
87,401
94,635
65 years and over
78,013
76,718
79,308
Male
30,843
29,858
31,828
Female
47,170
46,545
47,795
 
RACE
One race
526,141
523,871
528,411
White
423,396
420,716
426,076
Black or African American
77,450
74,767
80,133
American Indian and Alaska Native
1,130
0
2,770
Asian
20,082
19,856
20,308
Asian Indian
4,246
1,883
6,609
Chinese (except Taiwanese)
5,006
1,528
8,484
Filipino
482
0
1,056
Japanese
367
0
948
Korean
5,255
2,594
7,916
Vietnamese
4,225
1,486
6,964
Other Asian
501
0
1,351
Native Hawaiian and Other Pacific Islander
0
0
488
Native Hawaiian
N
N
N
Guamanian or Chamorro
N
N
N
Samoan
N
N
N
Other Pacific Islander
N
N
N
Some other race
4,083
1,403
6,763
Two or more races
3,277
1,007
5,547
Two races including Some other race
0
0
488
Two races excluding Some other race, and Three or more races
3,277
1,007
5,547
 
Race alone or in combination with one or more other races:
White
425,770
422,866
428,674
Black or African American
79,660
77,880
81,440
American Indian and Alaska Native
2,709
828
4,590
Asian
21,120
19,952
22,288
Native Hawaiian and Other Pacific Islander
135
0
361
Some other race
4,083
1,403
6,763
 
HISPANIC ORIGIN AND RACE
Total population
529,418
*****
*****
Hispanic or Latino (of any race)
7,598
*****
*****
Mexican
5,688
3,655
7,721
Puerto Rican
666
0
1,961
Cuban
163
0
465
Other Hispanic or Latino
1,081
0
2,282
Not Hispanic or Latino
521,820
*****
*****
White alone
419,881
419,393
420,369
Black or African American alone
77,450
74,767
80,133
American Indian or Alaska Native alone
1,130
0
2,770
Asian alone
20,082
19,856
20,308
Native Hawaiian and Other Pacific Islander alone
0
0
488
Some other race alone
0
0
488
Two or more races:
3,277
1,007
5,547
Two races including Some other race
0
0
488
Two races excluding Some other race, and Three or more races
3,277
1,007
5,547
 
RELATIONSHIP
Household population
529,418
*****
*****
Householder
212,175
206,570
217,780
Spouse
108,669
103,382
113,956
Child
167,702
162,001
173,403
Other relatives
24,123
18,444
29,802
Nonrelatives
16,749
11,992
21,506
Unmarried partner
8,586
6,137
11,035
 
HOUSEHOLDS BY TYPE
Total households
203,195
199,030
207,360
Family households (families)
135,717
129,287
142,147
With own children under 18 years
62,410
58,582
66,238
Married-couple families
104,627
98,393
110,861
With own children under 18 years
47,275
42,851
51,699
Female householder, no husband present
24,945
21,030
28,860
With own children under 18 years
13,301
10,004
16,598
Nonfamily households
67,478
61,591
73,365
Householder living alone
59,413
53,707
65,119
65 years and over
24,782
21,129
28,435
 
Households with one or more people under 18 years
68,404
63,929
72,879
Households with one or more people 65 years and over
54,279
51,372
57,186
 
Average household size
2.61
2.56
2.66
Average family size
3.26
3.14
3.38
 
HOUSING OCCUPANCY
Total housing units
218,014
*****
*****
Occupied housing units
203,195
199,030
207,360
Vacant housing units
14,819
10,654
18,984
 
Homeowner vacancy rate (percent)
1.7
0.5
2.9
Rental vacancy rate (percent)
4.7
1.4
8.0
 
HOUSING TENURE
Occupied housing units
203,195
199,030
207,360
Owner-occupied
152,284
146,111
158,457
Renter-occupied
50,911
46,090
55,732
 
Average household size of owner-occupied unit
2.76
2.68
2.84
Average household size of renter-occupied unit
2.15
2.00
2.30
 

The 2001 Supplementary Survey universe is limited to the household population and excludes the population living in institutions, college dormitories, and other group quarters. Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate is represented through the use of a confidence interval. The confidence interval computed here is a 90 percent confidence interval and can be interpreted roughly as providing 90 percent certainty that the true number falls between the lower and upper bounds.

The number of householders does not necessarily equal the number of households because of differences in the weighting schemes for the population and occupied housing units.

1. An '*' entry in the lower and upper bound columns indicates that too few sample observations were available to compute a standard error and thus the lower and upper bounds. A statistical test is not appropriate.
2. An '**' entry in the lower and upper bound columns indicates that no sample observations were available to compute a standard error and thus the lower and upper bounds. A statistical test is not appropriate.
3. An '-' entry in the estimate column indicates that no sample observations were available to compute an estimate.
4. An '-' following a median estimate means the median falls in the lowest interval of an open-ended distribution.
5. An '+' following a median estimate means the median falls in the upper interval of an open-ended distribution.
6. An '***' entry in the lower and upper bound columns indicates that the median falls in the lowest interval or upper interval of an open-ended distribution. A statistical test is not appropriate.
7. An '*****' entry in the lower and upper bound columns indicates that the estimate is controlled. A statistical test is not appropriate.
8. An 'N' entry in the estimate, lower bound, and upper bound columns indicates that data for this geographic area cannot be displayed because the number of sample cases is too small.

Source: U.S. Census Bureau  |  American Community Survey Office  |  Page Last Modified: August 23, 2007