Lake County, Ohio

Lake County
Lake County Courthouse
Flag of Lake County
Official seal of Lake County
Official logo of Lake County
Map of Ohio highlighting Lake County
Location within the U.S. state of Ohio
Map of the United States highlighting Ohio
Ohio's location within the U.S.
Coordinates: 41°49′N 81°14′W / 41.82°N 81.24°W / 41.82; -81.24
Country United States
State Ohio
FoundedMarch 6, 1840[1]
Named forLake Erie
SeatPainesville
Largest cityMentor
Area
 • Total979 sq mi (2,540 km2)
 • Land227 sq mi (590 km2)
 • Water752 sq mi (1,950 km2)  77%
Population
 (2020)
 • Total232,603
 • Estimate 
(2023)
231,640 Decrease
 • Density240/sq mi (92/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district14th
Websitewww.lakecountyohio.gov

Lake County is a county in the U.S. state of Ohio. As of the 2020 census, the population was 232,603.[2] Its county seat is Painesville, and its largest city is Mentor.

The county was established on March 6, 1840, from land given by Cuyahoga and Geauga counties. Its name is derived from its location on the southern shore of Lake Erie and the fact that the majority of the county’s land lies beneath Lake Erie.[3][4] Lake County is part of the Cleveland, OH Metropolitan Statistical Area.

  1. ^ "Ohio County Profiles: Lake County" (PDF). Ohio Department of Development. Archived from the original (PDF) on March 18, 2004. Retrieved April 28, 2007.
  2. ^ "State & County QuickFacts". United States Census Bureau. Retrieved July 14, 2022.
  3. ^ "Lake County data". Ohio State University Extension Data Center. Retrieved April 28, 2007.[dead link]
  4. ^ summertorok (March 9, 2023). "Lake County Commissioners Celebrate Lake County's 183rd Birthday". Commissioners' Office. Retrieved December 21, 2023.