Effingham County, Illinois
7 ZIP codes · 478.77 sq mi of land · FIPS 17049
| Population | 34,522 |
|---|---|
| State | Illinois |
| FIPS code | 17049 |
| Time zone | Central |
| Land area | 478.77 sq mi |
| Center (lat, long) | 39.0479, -88.5928 |
Area codes in this area
These are the area codes that most often serve Effingham County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
EffinghamAltamontDieterichMasonShumwayTeutopolisWatson
ZIP codes in Effingham County
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.