Lake County, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 11th-largest in Ohio
The population of Lake County, Ohio is 232,101 as of the 2023 American Community Survey, making it the 11th-largest county in Ohio. The median household income is $77,952, the median home value is $199,900, and the median age is 44.0.
The population of Lake County has grown 1.0% since 2010 (230,010 → 232,360), a +0.07% annualized rate.
232,101
Population
+0.07%
Annual growth
1012
People / sq mi
$77,952
Median Income
$199,900
Median Home Value
Lake County covers 229 sq mi of land at 1011.8 people per square mile.
About Lake County, OH
What distinguishes Lake County is density: among the most densely settled of US counties, around 1,012 people per square mile. Lake County is a county in Ohio with a population of 232,101. It ranks #11 among counties in Ohio by population.
The typical household earns $77,952 a year, near the US median of $78,538. Only 5.2% of residents live in poverty, below the national 12.4%. Homes carry a median value of $199,900, with typical rent around $1,073.
College attainment is above the local norm at 30.5%, below the national 35.0%. A solid 12.2% of workers are based at home, below the national 14.0%, and the average commute runs about 23 minutes each way.
That density explains much of the rest of the profile in Lake County: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Lake County Population History (2010-2024)
The county of Lake County had a population of 230,010 in 2010 and 232,360 in 2024, a 1.0% growth over 14 years. The peak was 232,527 in 2020. Average annual growth rate: 0.07%.
232,360
Population (2024)
230,010
Population (2010)
232,527
Peak (2020)
0.07%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 230,010 |
| 2011 | 229,991 |
| 2012 | 229,572 |
| 2013 | 230,085 |
| 2014 | 229,865 |
| 2015 | 229,843 |
| 2016 | 229,499 |
| 2017 | 230,114 |
| 2018 | 229,856 |
| 2019 | 229,739 |
| 2020 | 232,527 |
| 2021 | 232,261 |
| 2022 | 231,968 |
| 2023 | 231,964 |
| 2024 | 232,360 |
Race & Ethnicity
| White | 86.9% |
| Black or African American | 4.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Age & Sex
44.0
Median Age
50.8%
Female
49.2%
Male
21.1%
Age 65+
Age Distribution
Children (under 15): 15.8% · Seniors (65+): 21.1%
Income & Poverty
| Median household income | $77,952+$8,272 vs state |
| Mean household income | $98,936 |
| Per-capita income | $43,197 |
| Poverty rate | 5.2%-4.0% vs state |
| Unemployment rate | 2.8% |
| Employment-to-population | 62.7% |
Top Industries by Employment
The largest employment sector in Lake County is professional & business services, accounting for 21.7% of workers.
How residents commute
0.6%
Drive alone
1.1%
Carpool
77.9%
Public transit
12.2%
Work from home
23.3 min
Avg commute
Housing
$199,900+$700 vs state
Median home value
$1,073
Median rent
75.1%
Homeownership rate
105,877
Total housing units
94.8%
Occupied
5.2%
Vacant
24.9%
Renter-occupied
Social & access
95.1%
With health insurance
94.6%
With broadband internet
14.8%
Foreign-born
7.1%
Veterans (18+)
14.0%
With a disability
92.1%
Speak language other than English at home
Education
93.9%
High School+
30.5%
Bachelor's+
Largest cities in Ohio
Other counties in Ohio
Part of Ohio
Metro areas in Ohio
County rankings
Frequently Asked Questions
Lake County, Ohio has a population of 232,101 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 11th-largest county in Ohio. Population density is 1012 people per square mile.
The population of Lake County has grown 1.0% since 2010 (230,010 → 232,360), a +0.07% annualized rate.
The median household income in Lake County, Ohio is $77,952, with mean (average) household income of $98,936 and per-capita income of $43,197. 5.2% of residents live below the federal poverty level.
In Lake County, the largest racial and ethnic groups are White (86.9%), Black or African American (4.9%), Hispanic or Latino (0.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Lake County, Ohio is 44.0 years. Residents are 50.8% female and 49.2% male.
The median home value in Lake County is $199,900 and median monthly rent is $1,073. 75.1% of occupied housing units are owner-occupied. The county has 105,877 total housing units, 5.2% of which are vacant.
The largest employment sector in Lake County, Ohio is professional, scientific, and management services, employing 21.7% of workers. The unemployment rate is 2.8%.
Columbus is among the largest cities associated with Lake County, Ohio, with a population of 906,480.
Lake County, OH Climate
Lake County, OH has an average annual temperature of 9.9°C (50°F) and receives about 965 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.9°C
Avg Temp
965
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -3° / 27° | 55 mm |
| February | -2° / 28° | 48 mm |
| March | 2° / 35° | 70 mm |
| April | 8° / 46° | 77 mm |
| May | 14° / 57° | 84 mm |
| June | 19° / 66° | 95 mm |
| July | 22° / 72° | 87 mm |
| August | 21° / 71° | 93 mm |
| September | 18° / 64° | 96 mm |
| October | 12° / 54° | 82 mm |
| November | 7° / 44° | 95 mm |
| December | 1° / 34° | 83 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Lake County, OH
The most comfortable months to visit Lake County, OH are typically August, July and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 27°C high). The coldest is January (near -7°C low). September is usually the wettest month.
Where to stay near Lake County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.