Jefferson County, Iowa
7 ZIP codes · 435.52 sq mi of land · FIPS 19101
| Population | 15,705 |
|---|---|
| State | Iowa |
| FIPS code | 19101 |
| Time zone | Central |
| Land area | 435.52 sq mi |
| Center (lat, long) | 41.0064, -91.9666 |
Area codes in this area
These are the area codes that most often serve Jefferson 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)
BataviaBrightonFairfieldLibertyvillePackwoodLockridge
ZIP codes in Jefferson County
52533 Batavia52540 Brighton52556 Fairfield52557 Fairfield52567 Libertyville52580 Packwood52635 Lockridge
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.