Kosciusko County, Indiana Zip Codes
| Warsaw | 22,538 |
| Warsaw | 14,063 |
| Syracuse | 9,395 |
| Winona Lake | 5,077 |
| Pierceton | 4,894 |
| Milford | 4,744 |
| Leesburg | 4,498 |
| Claypool | 2,942 |
| Silver Lake | 2,730 |
| Etna Green | 2,653 |
| Mentone | 2,502 |
| North Webster | 2,389 |
| Burket | 200 |
| Atwood | 0 |
- Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.