Allen County, Ohio ZIP Codes
- ZIP records
13 - Cities represented
9 - Sum of listed ZIP population estimates
108,577
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 | 45805 | Lima | 24,387 |
| 2 | 45801 | Lima | 21,739 |
| 3 | 45804 | Lima | 13,608 |
| 4 | 45807 | Lima | 11,774 |
| 5 | 45806 | Lima | 10,974 |
| 6 | 45833 | Delphos | 10,919 |
| 7 | 45817 | Bluffton | 5,926 |
| 8 | 45887 | Spencerville | 4,422 |
| 9 | 45850 | Harrod | 3,559 |
| 10 | 45820 | Cairo | 581 |
Cities in Allen County
ZIP Directory
- ZIP 45801
- ZIP 45804
- ZIP 45805
- ZIP 45806
- ZIP 45807
- ZIP 45808
- ZIP 45809
- ZIP 45817
- ZIP 45820
- ZIP 45833
- ZIP 45850
- ZIP 45854
- ZIP 45887
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.