Washtenaw County Population
| Year | Population |
|
1825 |
1500 |
|
1830 |
4042 |
|
1840 |
23571 |
|
1850 |
28567 |
|
1860 |
35677 |
|
1870 |
41434 |
|
1880 |
41848 |
|
1890 |
42210 |
|
1900 |
47761 |
|
1910 |
44714 |
|
1920 |
49520 |
|
1930 |
65530 |
|
1940 |
80810 |
|
1950 |
134606 |
|
1960 |
172440 |
|
1970 |
234103 |
|
1980 |
264740 |
|
1990 |
282937 |
|
2000 |
322895 |
|
2005 |
341847 |
|
2006 (July 1) |
345357 |
|
2008 (January) |
349021 |
For latest monthly estimate from SEMCOG, go to http://www.semcog.org/homepage.aspx , select Data and Maps, click on Data Search by Community.
Sources: 1825: Washtenaw County: an Illustrated History, by Ruth Bordin, p. 20 (R 977.435 Bo)
1830-1960: United States Historical Census Data Browser, http://fisher.lib.virginia.edu/census/
1970-1980: County and City Data Book (United States Census) (R 317.3 Un, Ann Arbor District Library, Downtown Library)
1990- : County and City Extra (Bernan) (R 317.3 Un, Ann Arbor District Library, Downtown Library)
2006- : SEMCOG
