ZIP CodesZIP codes in Butler County, Iowa
Butler County, Iowa has 12 ZIP codes in this list, from 50602 to 50670. They cover 12 places, among them Allison, Aplington, Aredale and Austinville.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 50602 | Allison | 78.9 | 42.761, -92.783 |
| 50604 | Aplington | 71.5 | 42.587, -92.875 |
| 50605 | Aredale | 16.9 | 42.832, -93.021 |
| 50608 | Austinville | 0.2 | 42.582, -92.960 |
| 50611 | Bristow | 31.6 | 42.774, -92.886 |
| 50619 | Clarksville | 84.1 | 42.804, -92.659 |
| 50625 | Dumont | 61.1 | 42.737, -92.967 |
| 50636 | Greene | 116 | 42.896, -92.802 |
| 50649 | Kesley | 0.0 | 42.663, -92.911 |
| 50660 | New Hartford | 34.9 | 42.583, -92.616 |
| 50665 | Parkersburg | 98.9 | 42.571, -92.769 |
| 50670 | Shell Rock | 55.1 | 42.706, -92.589 |
The ZIP code areas of Butler County add up to about 650 square miles of land (1,683 sq km) as the Census Bureau draws them. The largest is 50636 (Greene), with 116 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Allison, IA 50602.
- 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.