Prosecuting Attorney

Scott Koerner

Monday - Friday: 8am - 5pm

Surbeck Building
201 North Shiawassee Street, 2nd Floor
Corunna, MI 48817

Click Here For Directions

P (Criminal Division): 989.743.2373
P (Victim's Rights): 989.743.2468
F: 989.743.2237

Where is Shiawassee County?

  Shiawassee County is located in the south-central area of Michigan's lower peninsula (the part that looks like a mitten). Shiawassee County is bordered to the east by Genesee County (Flint, Burton, Grand Blanc, Flushing, Mt. Morris, etc.), to the north by Saginaw County (Saginaw, Chesaning, etc.) and to the west by Clinton County (St. Johns, DeWitt, etc.) and a tiny piece of Gratiot County (Ithaca, Alma, etc.), and to the south by Ingham County (Lansing, East Lansing, Mason, Okemos, etc.) and Livingston County (Howell, Brighton, etc.). Shiawassee County is easy to get to. Interstate highway I-69 (which runs from Port Huron, MI south through Indiana and beyond) spans Shiawassee County, from our eastern edge to our south-west corner. Two state highways cross through the heart of Shiawassee County: M-52 crosses into south central Shiawassee County near Perry and enters into north-central Shiawassee County near Henderson. M-21 enters west-central Shiawassee County at Ovid and east-central Shiawassee County at Lennon.

Shiawassee County had 68,094 residents in the 2020 census. The City of Corunna (population 3,497) is the county seat. Our largest city is the City of Owosso (population 15,194), in the center of the county.  Some of the communities in Shiawassee County are: