Shiawassee County with an entire area of 540.73 sq mi was created in 1822. Corunna is the county seat and Owosso is the largest city of the county. Named for the Shiawassee River, that means the 'river that twists about, the County has a total population of over 70K with an excellent admixture of White, Native American, black or African American, Asian, Hispanic or Latino, Pacific Islander, and others including 27.4K households and 19.3K families.

People from all over the world today easily access the Shiawassee County records website to retrieve ample information regarding land and estate data, census data, origin and birth details, World War I and II information, immigration and naturalization specifics, last will or probate specifics, civil court case public facts obituary notice marriage and divorce details, real estate and property facts, American Civil War history, demise facts, war and enlistment data, burial and cemetery details, marriage volume number and the likes.