ZIP CodesZIP codes in Johnson County, Iowa
Johnson County, Iowa has 14 ZIP codes in this list, from 52235 to 52755. They cover 9 places, among them Iowa City, Hills, Coralville and North Liberty.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 52235 | Hills | 2.1 | 41.556, -91.531 |
| 52240 | Iowa City | 142 | 41.636, -91.502 |
| 52241 | Coralville | 13.5 | 41.694, -91.591 |
| 52242 | Iowa City | 0.7 | 41.663, -91.548 |
| 52243 | Iowa City | no area | 41.661, -91.530 |
| 52244 | Iowa City | no area | 41.573, -91.662 |
| 52245 | Iowa City | 8.4 | 41.665, -91.515 |
| 52246 | Iowa City | 16.7 | 41.644, -91.567 |
| 52317 | North Liberty | 34.4 | 41.744, -91.606 |
| 52322 | Oxford | 87.4 | 41.651, -91.772 |
| 52333 | Solon | 85.6 | 41.810, -91.509 |
| 52338 | Swisher | 33.4 | 41.827, -91.674 |
| 52340 | Tiffin | 19.1 | 41.702, -91.677 |
| 52755 | Lone Tree | 57.8 | 41.499, -91.436 |
The ZIP code areas of Johnson County add up to about 501 square miles of land (1,298 sq km) as the Census Bureau draws them. The largest is 52240 (Iowa City), with 142 square miles.
Places with more than one code here: Iowa City (6 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Hills, IA 52235.
- 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.