is a county
in the U.S. state
. As of the 2000 census
, the population was 322,895. Its county seat
is Ann Arbor
. The United States Office of Management and Budget
defines the county as part of the Detroit–Warren–Flint Combined Statistical Area
According to the U.S. Census Bureau
, the county has a total area of 723 square miles (1,871 km²), of which, 710 square miles (1,839 km²) of it is land and 13 square miles (33 km²) or 1.74% of it is water.
Michigan State Trunklines
As of the census
of 2000, there were 322,895 people, 125,327 households, and 73,692 families residing in the county. The population density
was 455 people per square mile (176/km²). There were 131,069 housing units at an average density of 185 per square mile (71/km²). The racial makeup of the county was 77.40% White
, 12.29% Black
or African American
, 0.36% Native American
, 6.30% Asian
, 0.04% Pacific Islander
, 1.04% from other races
, and 2.57% from two or more races. 2.74% of the population were Hispanic
of any race. 17.4% were of German
, 9.0% English
, 8.4% Irish
, 5.3% Polish
and 5.0% American
ancestry according to Census 2000
. 87.1% spoke English
, 2.7% Spanish
and 1.7% Chinese
as their first language.
By 2005 non-Hispanic whites were 74.5% of the county population; African-Americans 12.2%; Native Americans 0.4%; Asians 7.8%; and Hispanic or Latinos 3.1% of the population.
There were 125,327 households out of which 29.20% had children under the age of 18 living with them, 46.40% were married couples living together, 9.30% had a female householder with no husband present, and 41.20% were non-families. 29.50% of all households were made up of individuals and 5.90% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 3.02.
In the county the population was spread out with 22.10% under the age of 18, 17.10% from 18 to 24, 32.10% from 25 to 44, 20.60% from 45 to 64, and 8.10% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 98.90 males. For every 100 females age 18 and over, there were 97.10 males.
The median income for a household in the county was $51,990, and the median income for a family was $70,393. Males had a median income of $49,304 versus $33,598 for females. The per capita income for the county was $27,173. About 5.10% of families and 11.10% of the population were below the poverty line, including 8.60% of those under age 18 and 5.80% of those age 65 or over.
Cities, villages, and townships
There are also a number of unincorporated communities, such as Bridgewater, Dixboro, Delhi Mills, Geddes, Mooreville, Salem, Stoney Creek, Whittaker, Whitmore Lake, and Willis.
Also see: Official Washtenaw County website page listing localities
The county government operates the jail
, maintains rural roads, operates the major local courts, keeps files of deeds and mortgages, maintains vital records
, administers public health
regulations, and participates with the state in the provision of welfare and other social services. The county board of commissioners
controls the budget but has only limited authority to make laws or ordinances. In Michigan, most local government functions — police and fire, building and zoning, tax assessment, street maintenance, etc. — are the responsibility of individual cities and townships.
Washtenaw County elected officials
The Board of Commissioners has eleven members, elected from single member districts, on a partisan ballot, in November of even-numbered years. The term is two years. Information as of January 2007
|| Positions |
|| Mark Ouimet
|| Working Session Vice-Chair |
|| Ken Schwartz
|| Jessica Ping
|| Karen Lovejoy Roe
|| Rolland Sizemore Jr.
|| Working Session Chair |
|| Ronnie Peterson
|| Mandy Grewal
|| Board Vice-Chair |
|| Barbara Levin Bergman
|| Ways & Means Chair |
|| Leah Gunn
|| Conan Smith
|| Ways & Means Vice-Chair |
|| Jeff Irwin
|| Board Chair |
Parks and Recreation
Washtenaw county operates 10 parks, and 1 recreation center (gymnasium
). These parks include one with a water sprinkler area for children to splash through, one park with a substantial water park
component, and one golf course. The recreation center has a swimming pool, indoor track, basketball
courts, complete set of resistance machines
, a weight room, and several multipurpose rooms.
Washtenaw county is in the process of acquiring land for natural preservation. The program started in 2001 and will end in 2011. Eight parcels of land had been purchased as of July 2007. These parcels are of special ecological, recreational, and educational benefits. They are preserved in a natural unimproved state and are open to the public during daylight hours.