Alexander County | |
|---|---|
 Alexander County Courthouse in Cairo | |
 Location within the U.S. state of Illinois | |
 Illinois's location within the U.S. | |
| Coordinates: 37°11′N 89°20′W / 37.19°N 89.34°W | |
| Country |  United States |
| State |  Illinois |
| Founded | 1819 |
| Named for | William M. Alexander |
| Seat | Cairo |
| Largest city | Cairo |
| Area | |
| • Total | 253 sq mi (660 km2) |
| • Land | 236 sq mi (610 km2) |
| • Water | 17 sq mi (40 km2) 6.8% |
| Population (2020) | |
| • Total | 5,240 |
| • Estimate (2023) | 4,695 |
| • Density | 21/sq mi (8.0/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 12th |
| Website | www |
Alexander County is the southernmost county in the U.S. state of Illinois. As of the 2020 census, the population was 5,240.[1] Its county seat is Cairo[2] and its western boundary is formed by the Mississippi River.
Alexander County is part of the Cape Girardeau, MO-IL Metropolitan Statistical Area which is made up of jurisdictions on both sides of the Mississippi River.
- ^ Cite error: The named reference
2020 Censuswas invoked but never defined (see the help page). - ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.