Hardin County, Ohio ZIP Codes
- ZIP records
10 - Cities represented
10 - Sum of listed ZIP population estimates
34,157
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 | 43326 | Kenton | 12,573 |
| 2 | 45810 | Ada | 7,449 |
| 3 | 45843 | Forest | 4,184 |
| 4 | 43310 | Belle Center | 3,177 |
| 5 | 43340 | Mount Victory | 2,103 |
| 6 | 45812 | Alger | 2,027 |
| 7 | 45836 | Dunkirk | 1,573 |
| 8 | 45835 | Dola | 449 |
| 9 | 45859 | McGuffey | 384 |
| 10 | 43346 | Roundhead | 238 |
Cities in Hardin 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.