Louisa County, Iowa

Louisa County, Iowa
Location within the U.S. state of Iowa
Coordinates: 41°13′05″N 91°15′36″W / 41.218055555556°N 91.26°W / 41.218055555556; -91.26
Country United States
State Iowa
FoundedDecember 7, 1836
SeatWapello
Largest cityWapello
Area
 • Total
418 sq mi (1,080 km2)
 • Land402 sq mi (1,040 km2)
 • Water16 sq mi (41 km2)  3.8%
Population
 (2020)
 • Total
10,837
 • Estimate 
(2024)
10,630
 • Density27.0/sq mi (10.4/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district1st
Websitelouisacountyia.gov
  • Iowa county number 58

Louisa County (/luˈzə/ loo-EYE-zə) is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 10,837. The county seat and the largest city is Wapello.

Louisa County is part of the Muscatine Micropolitan Statistical Area.