Fulton County, Ohio
County seat: Wauseon · Population 41,853 (2025) · 405 sq mi
Fulton County is the 60th most populous of Ohio's 88 counties, with 41,853 people (2025 estimate). Its county seat is Wauseon. The map shows its 7 cities and towns and the 5 neighboring counties.

Fulton County facts
- County seat
- Wauseon
- Population (2025 estimate)
- 41,853 −2% since 2020
- Land area
- 405 sq mi 74th largest of 88
- Water area
- 2 sq mi
- Population density
- 103 per sq mi
- Established
- 1850
- Named after
- Robert Fulton American engineer and inventor (1765–1815)
- Largest city
- Wauseon 7,430
- Median household income
- $72,864
- Cities and towns
- 7 plus 3 CDPs
- ZIP codes
- 12
- Time zone
- Eastern
- FIPS code
- 39051
Cities and towns in Fulton County
Fulton County has 7 incorporated cities, towns and villages. Populations count the people living inside Fulton County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Wauseon (county seat) | City | 7,430 | |
| Archbold | Village | 4,417 | |
| Swanton | Village | 3,677 | Lucas County |
| Delta | Village | 3,291 | |
| Fayette | Village | 1,278 | |
| Lyons | Village | 581 | |
| Metamora | Village | 548 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Ai | 618 | |
| Pettisville | 447 | |
| Tedrow | 120 |
ZIP codes in Fulton County
12 ZIP codes reach into Fulton County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 43502 also Henry and Williams counties
- 43504 also Lucas County
- 43515
- 43521 also Williams County
- 43532 also Henry and Lucas counties
- 43533
- 43540
- 43553
- 43557 also Williams and Henry counties
- 43558 also Lucas County
- 43567 also Henry County
- 43570 also Williams County
Population of Fulton County, 2020–2025
Fulton County shrank by 860 people (−2%) between April 2020 and July 2025: 376 more deaths than births and a net loss of 491 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 42,647 |
| 2021 | 42,505 |
| 2022 | 42,041 |
| 2023 | 41,970 |
| 2024 | 42,075 |
| 2025 | 41,853 |
Neighboring counties
- Lenawee County, Michigan north · 97,779 people
- Henry County south · 27,598 people
- Williams County west · 36,549 people
- Lucas County east · 423,347 people
- Hillsdale County, Michigan northwest · 45,738 people
Printable Fulton County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (82 KB)
- PNG (2400 px) (57 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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