Washington County | |
|---|---|
 Washington County Courthouse in Nashville | |
 Seal | |
 Location within the U.S. state of Illinois | |
 Illinois's location within the U.S. | |
| Coordinates: 38°21′N 89°25′W / 38.35°N 89.42°W | |
| Country |  United States |
| State |  Illinois |
| Founded | January 2, 1818 |
| Named for | 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 km2) 0.2% |
| Population (2020) | |
• Total | 13,761 |
• Estimate (2023) | 13,536  |
| • Density | 24/sq mi (9.4/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.[1] Its county seat is Nashville.[2] It is located in the southern portion of Illinois known locally as "Little Egypt".
- ^ "Washington County, Illinois". United States Census Bureau. Retrieved June 10, 2023.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.