Shelby County, Indiana

Shelby County, Indiana
Shelby County Courthouse in Shelbyville
Location within the U.S. state of Indiana
Coordinates: 39°31′N 85°47′W / 39.52°N 85.79°W / 39.52; -85.79
Country United States
State Indiana
FoundedDecember 31, 1821 (authorized)
1822 (organized)
Named afterIsaac Shelby
SeatShelbyville
Largest cityShelbyville
Area
 • Total
412.76 sq mi (1,069.0 km2)
 • Land411.15 sq mi (1,064.9 km2)
 • Water1.61 sq mi (4.2 km2)  0.39%
Population
 (2020)
 • Total
45,055
 • Estimate 
(2023)
45,231
 • Density109.58/sq mi (42.310/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district6th
Websitewww.co.shelby.in.us
Indiana county number 73

Shelby County is a county in the U.S. state of Indiana. As of the 2020 United States census, the population was 45,055. The county seat (and only incorporated city) is Shelbyville.