ZIP CodesZIP codes in Jefferson County, Iowa
Jefferson County, Iowa has 6 ZIP codes in this list, from 52533 to 52635. They cover 5 places, among them Fairfield, Batavia, Libertyville and Packwood.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 52533 | Batavia | 88.0 | 40.990, -92.143 |
| 52556 | Fairfield | 176 | 41.004, -91.958 |
| 52557 | Fairfield | 0.3 | 41.017, -91.968 |
| 52567 | Libertyville | 25.4 | 40.950, -92.025 |
| 52580 | Packwood | 40.3 | 41.123, -92.066 |
| 52635 | Lockridge | 43.1 | 41.012, -91.764 |
The ZIP code areas of Jefferson County add up to about 373 square miles of land (965 sq km) as the Census Bureau draws them. The largest is 52556 (Fairfield), with 176 square miles.
Places with more than one code here: Fairfield (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Batavia, IA 52533.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.