Effingham County | |
|---|---|
 Effingham County Government Center and Jail in Effingham | |
 Seal | |
 Location within the U.S. state of Illinois | |
 Illinois's location within the U.S. | |
| Coordinates: 39°04′N 88°35′W / 39.06°N 88.59°W | |
| Country |  United States |
| State |  Illinois |
| Founded | 1831 |
| Named for | Thomas Howard, 3rd Earl of Effingham |
| Seat | Effingham |
| Largest city | Effingham |
| Area | |
| • Total | 480 sq mi (1,200 km2) |
| • Land | 479 sq mi (1,240 km2) |
| • Water | 1.2 sq mi (3 km2) 0.3% |
| Population (2020) | |
| • Total | 34,668 |
| • Density | 72/sq mi (28/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 12th |
| Website | www |
Effingham County is a county located in the south central part of the U.S. state Illinois. As of the 2020 census, the population was 34,668.[1] Its county seat and largest city is Effingham. Some other cities in Effingham County, Illinois include Altamont, Teutopolis, Beecher City, Montrose, Dieterich, Shumway, Watson, Mason, and Edgewood. Effingham County comprises the Effingham, IL Micropolitan Statistical Area.[2]
- ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on June 6, 2011. Retrieved July 4, 2014.
- ^ "Find a County". National Association of Counties. Archived from the original on July 12, 2012. Retrieved June 7, 2011.