Buchanan County, Iowa
10 ZIP codes · 571.08 sq mi of land · FIPS 19019
| Population | 20,694 |
|---|---|
| State | Iowa |
| FIPS code | 19019 |
| Time zone | Central |
| Land area | 571.08 sq mi |
| Center (lat, long) | 42.4703, -91.8387 |
Area codes in this area
These are the area codes that most often serve Buchanan 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)
AuroraFairbankHazletonIndependenceLamontMasonvilleWinthropBrandonQuasquetonRowley
ZIP codes in Buchanan County
50607 Aurora50629 Fairbank50641 Hazleton50644 Independence50650 Lamont50654 Masonville50682 Winthrop52210 Brandon52326 Quasqueton52329 Rowley
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.