Washington County, Illinois
Washington County, Illinois | |
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Washington County Courthouse in Nashville | |
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Seal | |
Location within the U.S. state of Illinois | |
| Coordinates: 38°21′N 89°25′W / 38.35°N 89.42°W | |
| Country | United States |
| State | Illinois |
| Founded | January 2, 1818 |
| Named after | George Washington |
| Seat | Nashville |
| Largest city | Nashville |
| Area | |
• Total | 564 sq mi (1,460 km2) |
| • Land | 563 sq mi (1,460 km2) |
| • Water | 1.3 sq mi (3.4 km2) 0.2% |
| Population (2020) | |
• Total | 13,761 |
• Estimate (2024) | 13,535 |
| • Density | 24.4/sq mi (9.44/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 12th |
| Website | www |
Washington County is a county located in the U.S. state of Illinois. As of the 2020 census, it had a population of 13,761. Its county seat is Nashville. It is located in the southern portion of Illinois known locally as "Little Egypt".