Franklin County, Illinois
Franklin County, Illinois | |
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Franklin County Courthouse in Benton | |
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Flag | |
Location within the U.S. state of Illinois | |
| Coordinates: 37°59′N 88°55′W / 37.99°N 88.92°W | |
| Country | United States |
| State | Illinois |
| Founded | January 2, 1818 |
| Named after | Benjamin Franklin |
| Seat | Benton |
| Largest city | West Frankfort |
| Area | |
• Total | 432 sq mi (1,120 km2) |
| • Land | 409 sq mi (1,060 km2) |
| • Water | 23 sq mi (60 km2) 5.2% |
| Population (2020) | |
• Total | 37,804 |
• Estimate (2024) | 37,033 |
| • Density | 92.4/sq mi (35.7/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 12th |
| Website | www |
Franklin County is a county in Southern Illinois. At the 2020 census, it had a population of 37,804. The largest city is West Frankfort and the county seat is Benton. Franklin County is located in the Metro Lakeland area of Southern Illinois.