County · Iowa · United States
Washington County ZIP codes
8 ZIP codes · 8 cities · FIPS 19183
Key facts
- State
- Iowa (IA)
- FIPS code
- 19183
- Population
- 22,539
- Median household income
- $71,339
- Median age
- 40.3
- Land area
- 568.8 sq mi (1,473.3 km²)
- Population density
- 40 / sq mi
- Area codes
- 319
Cities and ZIP codes in Washington County (8)
| City | ZIP codes |
|---|---|
| Ainsworth | 52201 |
| Brighton | 52540 |
| Crawfordsville | 52621 |
| Kalona | 52247 |
| Riverside | 52327 |
| Washington | 52353 |
| Wellman | 52356 |
| West Chester | 52359 |
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.