Lake County, Ohio

County seat: Painesville · Population 232,217 (2025) · 229 sq mi

Lake County is the 12th most populous of Ohio's 88 counties, with 232,217 people (2025 estimate). Its county seat is Painesville. The map shows its 18 cities and towns and the 3 neighboring counties.

Map of Lake County, Ohio with cities, towns and the county boundary
Lake 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) 111 KBPNG image 85 KBOhio county map

Lake County facts

County seat
Painesville
Population (2025 estimate)
232,217 −0.1% since 2020
Land area
229 sq mi 88th largest of 88
Water area
750 sq mi
Population density
1,012 per sq mi
Established
1840
Named after
Lake Erie one of the Great Lakes in North America
Largest city
Mentor 47,010
Median household income
$80,925
Cities and towns
18 plus 1 CDPs
ZIP codes
11
Time zone
Eastern
FIPS code
39085

Cities and towns in Lake County

Lake County has 18 incorporated cities, towns and villages. Populations count the people living inside Lake County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
MentorCity47,010
WilloughbyCity24,234
Painesville (county seat)City20,660
EastlakeCity17,357
WillowickCity14,178
WickliffeCity12,649
Willoughby HillsCity9,992
Mentor-on-the-LakeCity7,120
KirtlandCity6,925
MadisonVillage3,427
Fairport HarborVillage3,087
PerryVillage1,599
North PerryVillage912
Kirtland HillsVillage689
TimberlakeVillage602
Waite HillVillage521
Grand RiverVillage397
LakelineVillage214

Unincorporated communities (CDPs)

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

CommunityPopulationAlso in
North Madison8,594

ZIP codes in Lake County

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

Population of Lake County, 2020–2025

Lake County shrank by 300 people (−0.1%) between April 2020 and July 2025: 4,127 more deaths than births and a net gain of 3,774 people from migration.

Year (July 1)Population
2020232,517
2021232,179
2022231,698
2023231,648
2024232,140
2025232,217

Neighboring counties

Printable Lake 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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