Bon Homme County, South Dakota

Bon Homme County, South Dakota
Location within the U.S. state of South Dakota
Coordinates: 42°59′N 97°53′W / 42.99°N 97.88°W / 42.99; -97.88
Country United States
State South Dakota
FoundedApril 5, 1862
Named afterBon Homme Island
SeatTyndall
Largest citySpringfield
Area
 • Total
582 sq mi (1,510 km2)
 • Land564 sq mi (1,460 km2)
 • Water18 sq mi (47 km2)  3.1%
Population
 (2020)
 • Total
7,003
 • Estimate 
(2024)
7,071
 • Density12.4/sq mi (4.79/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional districtAt-large
Websitebonhomme.sdcounties.org

Bon Homme County (/ˈbɑːn əm/ BAHN əm; French: Comté de bon homme) is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 7,003. Its county seat is Tyndall.