Mercer County, Ohio ZIP Codes
- ZIP records
10 - Cities represented
10 - Sum of listed ZIP population estimates
42,549
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 45822 | Celina | 19,957 |
| 2 | 45828 | Coldwater | 6,404 |
| 3 | 45846 | Fort Recovery | 4,644 |
| 4 | 45883 | Saint Henry | 4,144 |
| 5 | 45882 | Rockford | 2,919 |
| 6 | 45860 | Maria Stein | 2,326 |
| 7 | 45862 | Mendon | 1,417 |
| 8 | 45826 | Chickasaw | 394 |
| 9 | 45310 | Burkettsville | 227 |
| 10 | 45866 | Montezuma | 117 |
Cities in Mercer County
ZIP Directory
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.