Ottawa County, Ohio ZIP Codes
- ZIP records
15 - Cities represented
15 - Sum of listed ZIP population estimates
37,849
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 | 43452 | Port Clinton | 14,264 |
| 2 | 43449 | Oak Harbor | 7,572 |
| 3 | 43430 | Genoa | 4,911 |
| 4 | 43440 | Lakeside Marblehead | 4,222 |
| 5 | 43416 | Elmore | 2,868 |
| 6 | 43432 | Graytown | 1,357 |
| 7 | 43445 | Martin | 801 |
| 8 | 43456 | Put In Bay | 692 |
| 9 | 43468 | Williston | 459 |
| 10 | 43408 | Clay Center | 386 |
Cities in Ottawa County
- Clay Center
- Elmore
- Genoa
- Graytown
- Gypsum
- Isle Saint George
- Lacarne
- Lakeside Marblehead
- Martin
- Middle Bass
- Oak Harbor
- Port Clinton
- Put In Bay
- Rocky Ridge
- Williston
ZIP Directory
- ZIP 43408
- ZIP 43416
- ZIP 43430
- ZIP 43432
- ZIP 43433
- ZIP 43436
- ZIP 43439
- ZIP 43440
- ZIP 43445
- ZIP 43446
- ZIP 43449
- ZIP 43452
- ZIP 43456
- ZIP 43458
- ZIP 43468
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.