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.

Map of Fulton County, Ohio with cities, towns and the county boundary
Fulton County, Ohio with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

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.

NameTypePopulation 2025Also in
Wauseon (county seat)City7,430
ArchboldVillage4,417
SwantonVillage3,677Lucas County
DeltaVillage3,291
FayetteVillage1,278
LyonsVillage581
MetamoraVillage548

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Ai618
Pettisville447
Tedrow120

ZIP codes in Fulton County

12 ZIP codes reach into Fulton County. ZIP codes ignore county lines, so some also cover a neighboring 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
202042,647
202142,505
202242,041
202341,970
202442,075
202541,853

Neighboring counties

Printable Fulton County map

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Sources

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