Hillsdale County

county in Michigan, United States

Key facts

Country: United States
State: Michigan
Seat: Hillsdale
Largest city: Hillsdale
Total: 607 sq mi (1,570 km )
Land: 598 sq mi (1,550 km )
Water: 8.9 sq mi (23 km ) 1.5%
Estimate 2025: 45,738
Density: 76/sq mi (29/km )
Time zone: UTC−5 ( Eastern )
Summer dst: UTC−4 ( EDT )
Congressional district: 5th
Website: https://hillsdalecounty.gov/

Article

Hillsdale County is a county located in the U.S. state of Michigan. As of the 2020 Census, the population was 45,746. The county seat is Hillsdale. Hillsdale County is the only county in Michigan to border both Indiana and Ohio. Due to an angle in the state's border with Ohio, Hillsdale County has the southernmost point in Michigan. Hillsdale County is conterminous with the Hillsdale, MI Micropolitan Statistical Area. The county is the home of Hillsdale College, a private liberal-arts college. The Hillsdale County Courthouse was designed by Claire Allen, a prominent southern Michigan architect.

History