Shelby County | |
---|---|
![]() | |
![]() Location within the U.S. state of Illinois | |
![]() Illinois's location within the U.S. | |
Coordinates: 39°23′N 88°49′W / 39.39°N 88.81°W | |
Country | ![]() |
State | ![]() |
Founded | 1827 |
Named for | Isaac Shelby |
Seat | Shelbyville |
Largest city | Shelbyville |
Area | |
• Total | 768 sq mi (1,990 km2) |
• Land | 759 sq mi (1,970 km2) |
• Water | 9.5 sq mi (25 km2) 1.2% |
Population (2020) | |
• Total | 20,990 |
• Density | 27/sq mi (11/km2) |
Time zone | UTC−6 (Central) |
• Summer (DST) | UTC−5 (CDT) |
Congressional district | 15th |
Website | www |
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]