Cass County, Michigan

Cass County
Cass County Courthouse in Cassopolis
Location within the U.S. state of Michigan
Michigan's location within the U.S.
Coordinates: 41°55′N 85°59′W / 41.91°N 85.99°W / 41.91; -85.99
Country United States
State Michigan
Founded1829
Named afterLewis Cass
SeatCassopolis
Largest cityDowagiac
Area
  Total
508 sq mi (1,320 km2)
  Land490 sq mi (1,300 km2)
  Water18 sq mi (50 km2)  3.6%
Population
 (2020)
  Total
51,589
  Estimate 
(2023)
51,642
  Density100/sq mi (39/km2)
Congressional district5th
Websitewww.casscountymi.org

Cass County is a county in the U.S. state of Michigan. As of the 2020 Census, the population was 51,589. Its county seat is Cassopolis. Cass County is included in the South BendMishawaka, IN-MI, Metropolitan Statistical Area which has a total population of 316,663 and is considered part of the Michiana region.