Washtenaw County, Michigan

Washtenaw County
Washtenaw County
County
	Washtenaw County Courthouse
	Seal
	Location within the U.S. state of Michigan
	Michigan's location within the U.S.
	Coordinates: 42°15′N 83°50′W / 42.25°N 83.84°W
Country	United States
State	Michigan
Founded	1822 (created); 1826 (organized)
Named for	O-wash-ta-nong ("far away water"), Ojibwe name for the Grand River
Seat	Ann Arbor
Largest city	Ann Arbor
Area
• Total	722 sq mi (1,870 km2)
• Land	706 sq mi (1,830 km2)
• Water	16 sq mi (40 km2) 2.3%
Population (2020)
• Total	372,258
• Density	527/sq mi (203/km2)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (EDT)
Congressional district	6th
Website	washtenaw.org

Washtenaw County (/ˈwɔːʃtənɔː/ WASH-tə-naw) is a county located in the U.S. state of Michigan. At the 2020 census, the population was 372,258.^[3] The county seat and largest city is Ann Arbor.^[4] The county was authorized by legislation in 1822 and organized as a county in 1826.^[1] Washtenaw County comprises the Ann Arbor Metropolitan Statistical Area. The county is home to the University of Michigan, Eastern Michigan University, Washtenaw Community College, and Concordia University Ann Arbor.

^ ^a ^b "Bibliography on Washtenaw County". Clarke Historical Library, Central Michigan University. Archived from the original on October 6, 2014. Retrieved January 23, 2013.
^ "About —". ewashtenaw.org. Archived from the original on October 28, 2012. Retrieved June 16, 2006.
^ "US Census QuickFacts". US Census Bureau. Retrieved August 13, 2021.
^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.