Michigan Counties
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Michigan Counties

The boundaries of the eighty-three counties in Michigan have not changed substantially since 1897. Wayne County was the sixth county in the Northwest Territory, formed 15 August 1796 and organized in 1815. Wayne County was created 21 November 1815 as an original county of Michigan.

Shiawassee County, Michigan

Shiawassee County Education, Geography, and HistoryShiawassee County, Michigan Courthouse

Shiawassee is a county located in the state of Michigan. Based on the 2010 census, the population was 70,648. The county seat is Corunna. The county was founded in 1822 and organized in 1837. Shiawassee County is named for the Shiawassee River, and means 'river that twists about'.

In 2010, the center of population of Michigan was located in Shiawassee County, in the township of Bennington.

Shiawassee County comprises the Owosso, MI Micropolitan Statistical Area and is included in the Lansing-East Lansing-Owasso, MI Combined Statistical Area.

Etymology - Origin of Shiawassee County Name

A Native American word meaning "river theat twists about," referring to a stretch of the Shiawassee River


County QuickFacts: CensusBureau Quick Facts

Shiawassee County History

Shiawassee County is named for the Shiawassee River, and means 'river that twists about

Set off: 1822

Organized: 1837

Geography: Land and Water

As reported by the Census Bureau, the county has a total area of 541 square miles (1,400 km2), of which 531 square miles (1,380 km2) is land and 10 square miles (26 km2) (1.9%) is water. The Shiawassee River enters it from Genesee County in the southeast and flows through Corunna and Owosso in the center of the county, exiting to Saginaw County in the north.

Neighboring Counties

Bordering counties are as follows:

  • Saginaw County (north)
  • Genesee County (east)
  • Clinton County (west)
  • Livingston County (southeast)
  • Ingham County (southwest)
  • Gratiot County (northwest)


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