Washington County, Iowa
7 ZIP codes · 568.83 sq mi of land · FIPS 19183
| Population | 22,561 |
|---|---|
| State | Iowa |
| FIPS code | 19183 |
| Time zone | Central |
| Land area | 568.83 sq mi |
| Center (lat, long) | 41.3294, -91.7251 |
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)
AinsworthKeotaRiversideWashingtonWellmanWest ChesterCrawfordsville
ZIP codes in Washington County
52201 Ainsworth52248 Keota52327 Riverside52353 Washington52356 Wellman52359 West Chester52621 Crawfordsville
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.