Clermont County, Ohio

County seat: Batavia · Population 216,977 (2025) · 453 sq mi

Clermont County is the 14th most populous of Ohio's 88 counties, with 216,977 people (2025 estimate). Its county seat is Batavia. The map shows its 11 cities and towns and the 7 neighboring counties.

Map of Clermont County, Ohio with cities, towns and the county boundary
Clermont 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).
Download PDF (Letter) 137 KBPNG image 128 KBOhio county map

Clermont County facts

County seat
Batavia
Population (2025 estimate)
216,977 +4% since 2020
Land area
453 sq mi 42nd largest of 88
Water area
8 sq mi
Population density
479 per sq mi
Established
1800
Largest city
Amelia 12,871
Median household income
$85,510
Cities and towns
11 plus 10 CDPs
ZIP codes
23
Time zone
Eastern
FIPS code
39025

Cities and towns in Clermont County

Clermont County has 11 incorporated cities, towns and villages. Populations count the people living inside Clermont County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
MilfordCity6,412Hamilton County
New RichmondVillage2,842
BethelVillage2,708
WilliamsburgVillage2,677
LovelandCity2,539Hamilton and Warren counties
Batavia (county seat)Village2,041
OwensvilleVillage822
FelicityVillage641
MoscowVillage156
NevilleVillage95
ChiloVillage68

Unincorporated communities (CDPs)

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

CommunityPopulationAlso in
Amelia12,871
Withamsville7,429
Mount Carmel4,890
Summerside4,662
Mulberry3,821
Mount Repose3,798
Day Heights2,457
Goshen759
Marathon146
Miamiville97

ZIP codes in Clermont County

23 ZIP codes reach into Clermont County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Clermont County, 2020–2025

Clermont County grew by 8,380 people (+4%) between April 2020 and July 2025: 18 more deaths than births and a net gain of 8,340 people from migration.

Year (July 1)Population
2020208,751
2021209,917
2022210,781
2023212,253
2024214,314
2025216,977

Neighboring counties

Printable Clermont 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.

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Sources

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