Iosco County, Michigan

Iosco County
Location within the U.S. state of Michigan
Michigan's location within the U.S.
Coordinates: 44°17′N 83°20′W / 44.28°N 83.34°W / 44.28; -83.34
Country United States
State Michigan
Founded1840 (as "Kanotin")
1857 organized
SeatTawas City
Largest cityEast Tawas
Area
  Total
1,890 sq mi (4,900 km2)
  Land549 sq mi (1,420 km2)
  Water1,341 sq mi (3,470 km2)  71%
Population
 (2020)
  Total
25,237
  Estimate 
(2023)
25,373
  Density13/sq mi (5.2/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional district1st
Websiteiosco.net

Iosco County (/ˈɒsk/ eye-OSS-koh) is a county in the U.S. state of Michigan; its eastern border is formed by Lake Huron. As of the 2020 census, its population was 25,237. Its seat of government is Tawas City.