Skip Navigation Bar
US Census Bureau
American FactFinder

Data Profile
You are here:  Main -> Data Sets -> Geography -> Results


Print/Download
Related Items

2008 Data Profiles:

2008 Comparison Profile

View this table...

View this table...


Washtenaw County, Michigan
ACS Demographic and Housing Estimates: 2008  More information about this table...
Data Set: 2008 American Community Survey 1-Year Estimates
Survey: American Community Survey

NOTE. Although the American Community Survey (ACS) produces population, demographic and housing unit estimates, it is the Census Bureau's Population Estimates Program that produces and disseminates the official estimates of the population for the nation, states, counties, cities and towns and estimates of housing units for states and counties.

For more information on confidentiality protection, sampling error, nonsampling error, and definitions, see Survey Methodology.

ACS Demographic and Housing Estimates


Estimate


Margin of Error


Percent


Margin of Error

SEX AND AGE

Total population

347,376

*****

347,376

(X)

Male

173,606

+/-613

50.0%

+/-0.2

Female

173,770

+/-613

50.0%

+/-0.2

 

Under 5 years

20,710

+/-4

6.0%

+/-0.1

5 to 9 years

20,483

+/-1,623

5.9%

+/-0.5

10 to 14 years

20,860

+/-1,623

6.0%

+/-0.5

15 to 19 years

36,078

+/-5,332

10.4%

+/-1.5

20 to 24 years

34,184

+/-5,379

9.8%

+/-1.5

25 to 34 years

48,829

+/-1,013

14.1%

+/-0.3

35 to 44 years

49,495

+/-668

14.2%

+/-0.2

45 to 54 years

47,565

+/-454

13.7%

+/-0.1

55 to 59 years

20,082

+/-1,307

5.8%

+/-0.4

60 to 64 years

16,874

+/-1,292

4.9%

+/-0.4

65 to 74 years

17,846

+/-508

5.1%

+/-0.1

75 to 84 years

10,960

+/-835

3.2%

+/-0.2

85 years and over

3,410

+/-790

1.0%

+/-0.2

 

Median age (years)

33.1

+/-0.3

(X)

(X)

 

18 years and over

273,197

+/-235

78.6%

+/-0.1

21 years and over

240,824

+/-5,413

69.3%

+/-1.6

62 years and over

40,785

+/-1,127

11.7%

+/-0.3

65 years and over

32,216

+/-297

9.3%

+/-0.1

 

18 years and over

273,197

+/-235

273,197

(X)

Male

135,638

+/-376

49.6%

+/-0.1

Female

137,559

+/-366

50.4%

+/-0.1

 

65 years and over

32,216

+/-297

32,216

(X)

Male

13,944

+/-203

43.3%

+/-0.4

Female

18,272

+/-201

56.7%

+/-0.4

 

RACE

Total population

347,376

*****

347,376

(X)

One race

335,553

+/-2,031

96.6%

+/-0.6

Two or more races

11,823

+/-2,031

3.4%

+/-0.6

 

One race

335,553

+/-2,031

96.6%

+/-0.6

White

262,984

+/-1,657

75.7%

+/-0.5

Black or African American

39,729

+/-2,029

11.4%

+/-0.6

American Indian and Alaska Native

887

+/-388

0.3%

+/-0.1

Cherokee tribal grouping

N

N

N

N

Chippewa tribal grouping

N

N

N

N

Navajo tribal grouping

N

N

N

N

Sioux tribal grouping

N

N

N

N

Asian

28,278

+/-705

8.1%

+/-0.2

Asian Indian

6,967

+/-1,723

2.0%

+/-0.5

Chinese

9,105

+/-1,772

2.6%

+/-0.5

Filipino

843

+/-643

0.2%

+/-0.2

Japanese

1,843

+/-877

0.5%

+/-0.3

Korean

6,157

+/-1,777

1.8%

+/-0.5

Vietnamese

1,484

+/-770

0.4%

+/-0.2

Other Asian

1,879

+/-1,243

0.5%

+/-0.4

Native Hawaiian and Other Pacific Islander

201

+/-226

0.1%

+/-0.1

Native Hawaiian

N

N

N

N

Guamanian or Chamorro

N

N

N

N

Samoan

N

N

N

N

Other Pacific Islander

N

N

N

N

Some other race

3,474

+/-1,172

1.0%

+/-0.3

Two or more races

11,823

+/-2,031

3.4%

+/-0.6

White and Black or African American

4,987

+/-1,771

1.4%

+/-0.5

White and American Indian and Alaska Native

1,835

+/-620

0.5%

+/-0.2

White and Asian

2,149

+/-649

0.6%

+/-0.2

Black or African American and American Indian and Alaska Native

633

+/-467

0.2%

+/-0.1

 

Race alone or in combination with one or more other races

Total population

347,376

*****

347,376

(X)

White

273,618

+/-2,260

78.8%

+/-0.7

Black or African American

46,701

+/-1,434

13.4%

+/-0.4

American Indian and Alaska Native

3,762

+/-814

1.1%

+/-0.2

Asian

31,003

+/-406

8.9%

+/-0.1

Native Hawaiian and Other Pacific Islander

266

+/-250

0.1%

+/-0.1

Some other race

4,951

+/-1,618

1.4%

+/-0.5

 

HISPANIC OR LATINO AND RACE

Total population

347,376

*****

347,376

(X)

Hispanic or Latino (of any race)

11,788

*****

3.4%

*****

Mexican

6,477

+/-1,482

1.9%

+/-0.4

Puerto Rican

1,685

+/-881

0.5%

+/-0.3

Cuban

123

+/-150

0.0%

+/-0.1

Other Hispanic or Latino

3,503

+/-1,462

1.0%

+/-0.4

Not Hispanic or Latino

335,588

*****

96.6%

*****

White alone

256,108

+/-491

73.7%

+/-0.1

Black or African American alone

39,298

+/-1,853

11.3%

+/-0.5

American Indian and Alaska Native alone

801

+/-349

0.2%

+/-0.1

Asian alone

28,278

+/-705

8.1%

+/-0.2

Native Hawaiian and Other Pacific Islander alone

201

+/-226

0.1%

+/-0.1

Some other race alone

838

+/-525

0.2%

+/-0.2

Two or more races

10,064

+/-2,052

2.9%

+/-0.6

Two races including Some other race

365

+/-300

0.1%

+/-0.1

Two races excluding Some other race, and Three or more races

9,699

+/-1,998

2.8%

+/-0.6

 

Total housing units

147,525

+/-4,482

(X)

(X)

Source: U.S. Census Bureau, 2008 American Community Survey

Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate arising from sampling variability is represented through the use of a margin of error. The value shown here is the 90 percent margin of error. The margin of error can be interpreted roughly as providing a 90 percent probability that the interval defined by the estimate minus the margin of error and the estimate plus the margin of error (the lower and upper confidence bounds) contains the true value. In addition to sampling variability, the ACS estimates are subject to nonsampling error (for a discussion of nonsampling variability, see Accuracy of the Data). The effect of nonsampling error is not represented in these tables.

Notes:
·For more information on understanding race and Hispanic origin data, please see the Census 2000 Brief entitled, Overview of Race and Hispanic Origin, issued March 2001. (pdf format)
·The 2008 questions on Hispanic origin and race were changed from 2007 in order to make the ACS consistent with Census 2010 question wording. For a summary of questionnaire changes see http://www.census.gov/acs/www/Downloads/ACS%20Mail%20Questionnaire%20(2008).pdf. The change in estimates from 2007 to 2008 may be due to several factors including questionnaire changes, population controls, methodological changes, and therefore should be used with caution. For more information about changes in the estimates see http://www.census.gov/population/www/socdemo/hispanic/reports.html.
·While the 2008 American Community Survey (ACS) data generally reflect the November 2007 Office of Management and Budget (OMB) definitions of metropolitan and micropolitan statistical areas; in certain instances the names, codes, and boundaries of the principal cities shown in ACS tables may differ from the OMB definitions due to differences in the effective dates of the geographic entities. The 2008 Puerto Rico Community Survey (PRCS) data generally reflect the November 2007 Office of Management and Budget (OMB) definitions of metropolitan and micropolitan statistical areas; in certain instances the names, codes, and boundaries of the principal cities shown in PRCS tables may differ from the OMB definitions due to differences in the effective dates of the geographic entities.
·Estimates of urban and rural population, housing units, and characteristics reflect boundaries of urban areas defined based on Census 2000 data. Boundaries for urban areas have not been updated since Census 2000. As a result, data for urban and rural areas from the ACS do not necessarily reflect the results of ongoing urbanization.

Explanation of Symbols:
1. An '**' entry in the margin of error column indicates that either no sample observations or too few sample observations were available to compute a standard error and thus the margin of error. A statistical test is not appropriate.
2. An '-' entry in the estimate column indicates that either no sample observations or too few sample observations were available to compute an estimate, or a ratio of medians cannot be calculated because one or both of the median estimates falls in the lowest interval or upper interval of an open-ended distribution.
3. An '-' following a median estimate means the median falls in the lowest interval of an open-ended distribution.
4. An '+' following a median estimate means the median falls in the upper interval of an open-ended distribution.
5. An '***' entry in the margin of error column indicates that the median falls in the lowest interval or upper interval of an open-ended distribution. A statistical test is not appropriate.
6. An '*****' entry in the margin of error column indicates that the estimate is controlled. A statistical test for sampling variability is not appropriate.
7. An 'N' entry in the estimate and margin of error columns indicates that data for this geographic area cannot be displayed because the number of sample cases is too small.
8. An '(X)' means that the estimate is not applicable or not available.



The letters PDF or symbol Adobe PDF indicate a document is in the Portable Document Format (PDF). To view the file you will need the Adobe® Acrobat® Reader, which is available for free from the Adobe web site.


Skip this main site navigation menu