County · Illinois · United States
Washington County ZIP codes
10 ZIP codes · 10 cities · FIPS 17189
Key facts
- State
- Illinois (IL)
- FIPS code
- 17189
- Population
- 13,682
- Median household income
- $75,652
- Median age
- 44.2
- Land area
- 562.6 sq mi (1,457.1 km²)
- Population density
- 24 / sq mi
- Area codes
- 618, 730
Cities and ZIP codes in Washington County (10)
| City | ZIP codes |
|---|---|
| Addieville | 62214 |
| Ashley | 62808 |
| Du Bois | 62831 |
| Hoyleton | 62803 |
| Irvington | 62848 |
| Nashville | 62263 |
| Oakdale | 62268 |
| Okawville | 62271 |
| Radom | 62876 |
| Richview | 62877 |
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.