Benton County, Iowa Zip Codes
| Vinton | 7,665 |
| Belle Plaine | 2,992 |
| Atkins | 2,668 |
| Dysart | 2,016 |
| Shellsburg | 1,819 |
| Urbana | 1,578 |
| Walford | 1,434 |
| Newhall | 1,297 |
| Van Horne | 1,119 |
| Blairstown | 1,049 |
| Norway | 1,045 |
| Keystone | 960 |
| Garrison | 849 |
| Mount Auburn | 405 |
| Watkins | 243 |
| Luzerne | 241 |
- Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.