Washington County, Illinois
10 ZIP codes · 562.6 sq mi of land · FIPS 17189
| Population | 13,627 |
|---|---|
| State | Illinois |
| FIPS code | 17189 |
| Time zone | Central |
| Land area | 562.6 sq mi |
| Center (lat, long) | 38.3531, -89.4172 |
Area codes in this area
These are the area codes that most often serve Washington 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)
AddievilleNashvilleOakdaleOkawvilleHoyletonAshleyDu BoisIrvingtonRadomRichview
ZIP codes in Washington County
62214 Addieville62263 Nashville62268 Oakdale62271 Okawville62803 Hoyleton62808 Ashley62831 Du Bois62848 Irvington62876 Radom62877 Richview
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.