Trempealeau County, Wisconsin

Trempealeau County
Location within the U.S. state of Wisconsin
Wisconsin's location within the U.S.
Coordinates: 44°18′N 91°21′W / 44.3°N 91.35°W / 44.3; -91.35
Country United States
State Wisconsin
Founded1855
Named afterTrempealeau River
SeatWhitehall
Largest cityArcadia
Area
  Total
742 sq mi (1,920 km2)
  Land733 sq mi (1,900 km2)
  Water9.0 sq mi (23 km2)  1.2%
Population
 (2020)
  Total
30,760
  Estimate 
(2023)
30,899
  Density41/sq mi (16/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district3rd
Websitewww.tremplocounty.com

Trempealeau County (/ˈtrɛmpəl/ TREM-pə-loh) is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 30,760. Its county seat is Whitehall.