Shelby County, Illinois

Shelby County
Shelby County Courthouse
Map of Illinois highlighting Shelby County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Coordinates: 39°23′N 88°49′W / 39.39°N 88.81°W / 39.39; -88.81
Country United States
State Illinois
Founded1827
Named forIsaac Shelby
SeatShelbyville
Largest cityShelbyville
Area
 • Total768 sq mi (1,990 km2)
 • Land759 sq mi (1,970 km2)
 • Water9.5 sq mi (25 km2)  1.2%
Population
 (2020)
 • Total20,990
 • Density27/sq mi (11/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district15th
Websitewww.shelbycounty-il.com

Shelby County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 20,990.[1] Its county seat is Shelbyville.[2]

  1. ^ "State & County QuickFacts". United States Census Bureau. Retrieved July 8, 2014.
  2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.

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