Ottawa County, OH ZIP codes
There are 15 ZIP codes in Ottawa County, OH, in 15 towns, from 43408 to 43468. The largest are 43452 (Port Clinton), 43449 (Oak Harbor) and 43440 (Lakeside Marblehead).
The county seat is Port Clinton.
- ZIP codes
- 15
- Towns
- 15
- County seat
- Port Clinton
- County FIPS
39123- State
- Ohio
- Population
- 39,994
- Median household income
- $76,101
- Land area
- 255 sq mi
- Metro area
- Sandusky
Ottawa County ZIP codes by town
- Port Clinton (county seat)
- 43452
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Ottawa County ZIP codes
The ZIP codes of Ottawa County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Ottawa County in numbers
About 39,994 people live in Ottawa County, in 18,504 households, the 62nd most populous of Ohio's 88 counties. The median household income is $76,101 a year, 7% above the Ohio median of $71,389 (US: $80,734). The median owner-occupied home is valued at $219,900 (about the same as the Ohio median), and median gross rent is $930 a month. The median age is 50.6; 29.5% of adults 25 and over hold a bachelor's degree or higher (31.5% across Ohio); the average commute takes 25 minutes.
| Population | 39,994 |
|---|---|
| Households | 18,504 |
| Median age | 50.6 |
| Median household income | $76,101 |
| Median home value | $219,900 |
| Median gross rent | $930 |
| Bachelor's degree or higher | 29.5% |
| Mean commute | 24.8 min |
| Population density | 157 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Ottawa County
| Town | ZIP codes | Population |
|---|---|---|
| Port Clinton | 1 | 5,970 |
| Lakeside Marblehead | 1 | 4,222 |
| Oak Harbor | 1 | 2,314 |
| Genoa | 1 | 1,872 |
| Elmore | 1 | 1,643 |
| Graytown | 1 | 1,357 |
| Martin | 1 | 801 |
| Clay Center | 1 | 388 |
| Williston | 1 | 287 |
| Rocky Ridge | 1 | 282 |
| Put In Bay | 1 | 126 |
| Middle Bass | 1 | 35 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Ottawa County.
Not sure you are in Ottawa County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Ottawa County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
43408 | Clay Center , OH | Standard | 386 | $61,719 | $117,800 |
43416 | Elmore , OH | Standard | 2,868 | $88,611 | $197,100 |
43430 | Genoa , OH | Standard | 4,911 | $73,807 | $156,700 |
43432 | Graytown , OH | Standard | 1,357 | $152,411 | $244,700 |
43433 | Gypsum , OH | Standard | 0 | — | — |
43436 | Isle Saint George , OH | Standard | 0 | — | — |
43439 | Lacarne , OH | Standard | 0 | — | — |
43440 | Lakeside Marblehead , OH | Standard | 4,222 | $74,818 | $297,100 |
43445 | Martin , OH | Standard | 801 | $82,670 | $192,900 |
43446 | Middle Bass , OH | Standard | 35 | — | — |
43449 | Oak Harbor , OH | Standard | 7,572 | $71,083 | $180,900 |
43452 | Port Clinton , OH | Standard | 14,264 | $67,490 | $222,000 |
43456 | Put In Bay , OH | Standard | 692 | $72,969 | $589,000 |
43458 | Rocky Ridge , OH | Standard | 282 | $78,906 | $97,100 |
43468 | Williston , OH | Standard | 459 | $130,533 | $206,400 |
Cite this page
zipcodes.pro. “Ottawa County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/oh/county/ottawa
Underlying data is public domain or openly licensed — sources, vintages and licences.