Butler County, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 7th-largest in Ohio
The population of Butler County, Ohio is 389,910 as of the 2023 American Community Survey, making it the 7th-largest county in Ohio. The median household income is $81,194, the median home value is $243,000, and the median age is 37.1.
The population of Butler County has grown 8.2% since 2010 (369,111 → 399,542), a +0.57% annualized rate.
389,910
Population
+0.57%
Annual growth
836
People / sq mi
$81,194
Median Income
$243,000
Median Home Value
Butler County covers 467 sq mi of land at 835.8 people per square mile.
About Butler County, OH
What distinguishes Butler County is density: among the most densely settled of US counties, around 836 people per square mile. With 389,910 residents, Butler County is a county in Ohio. That makes it one of the ten largest counties in Ohio in the country, at #7 by population.
The typical household earns $81,194 a year, near the US median of $78,538. The poverty rate is 7.6%, below the national 12.4%. The median home value is $243,000, with typical rent around $1,098.
Educational attainment is on the higher side for US counties — 32.5% of adults hold a four-year degree, below the national 35.0%. Remote work is on the higher side at 11.8%, below the national 14.0%, and the average commute runs about 25 minutes each way.
That density explains much of the rest of the profile in Butler County: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Butler County Population History (2010-2024)
The county of Butler County had a population of 369,111 in 2010 and 399,542 in 2024, a 8.2% growth over 14 years. The peak was 399,542 in 2024. Average annual growth rate: 0.57%.
399,542
Population (2024)
369,111
Population (2010)
399,542
Peak (2024)
0.57%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 369,111 |
| 2011 | 370,164 |
| 2012 | 370,628 |
| 2013 | 371,497 |
| 2014 | 373,877 |
| 2015 | 376,173 |
| 2016 | 378,527 |
| 2017 | 380,751 |
| 2018 | 382,114 |
| 2019 | 383,603 |
| 2020 | 390,887 |
| 2021 | 387,671 |
| 2022 | 390,689 |
| 2023 | 395,593 |
| 2024 | 399,542 |
Race & Ethnicity
| White | 77.9% |
| Black or African American | 8.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.8% |
| Two or More Races | 0.0% |
Age & Sex
37.1
Median Age
50.6%
Female
49.4%
Male
15.5%
Age 65+
Age Distribution
Children (under 15): 19.3% · Seniors (65+): 15.5%
Income & Poverty
| Median household income | $81,194+$11,514 vs state |
| Mean household income | $103,524 |
| Per-capita income | $39,425 |
| Poverty rate | 7.6%-1.6% vs state |
| Unemployment rate | 3.0% |
| Employment-to-population | 60.3% |
Top Industries by Employment
The largest employment sector in Butler County is professional & business services, accounting for 22.9% of workers.
How residents commute
0.3%
Drive alone
1.8%
Carpool
76.7%
Public transit
11.8%
Work from home
24.9 min
Avg commute
Housing
$243,000+$43,800 vs state
Median home value
$1,098
Median rent
69.9%
Homeownership rate
154,777
Total housing units
93.8%
Occupied
6.2%
Vacant
30.1%
Renter-occupied
Social & access
93.7%
With health insurance
95.0%
With broadband internet
21.8%
Foreign-born
6.1%
Veterans (18+)
11.8%
With a disability
89.8%
Speak language other than English at home
Education
91.2%
High School+
32.5%
Bachelor's+
Largest cities in Ohio
Other counties in Ohio
Part of Ohio
Metro areas in Ohio
County rankings
Common questions about Butler County, OH
Frequently Asked Questions
Butler County, Ohio has a population of 389,910 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 7th-largest county in Ohio. Population density is 836 people per square mile.
The population of Butler County has grown 8.2% since 2010 (369,111 → 399,542), a +0.57% annualized rate.
The median household income in Butler County, Ohio is $81,194, with mean (average) household income of $103,524 and per-capita income of $39,425. 7.6% of residents live below the federal poverty level.
In Butler County, the largest racial and ethnic groups are White (77.9%), Black or African American (8.3%), Hispanic or Latino (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Butler County, Ohio is 37.1 years. Residents are 50.6% female and 49.4% male.
The median home value in Butler County is $243,000 and median monthly rent is $1,098. 69.9% of occupied housing units are owner-occupied. The county has 154,777 total housing units, 6.2% of which are vacant.
The largest employment sector in Butler County, Ohio is professional, scientific, and management services, employing 22.9% of workers. The unemployment rate is 3.0%.
Columbus is among the largest cities associated with Butler County, Ohio, with a population of 906,480.
Butler County, OH Climate
Butler County, OH has an average annual temperature of 11.4°C (53°F) and receives about 1030 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
11.4°C
Avg Temp
1030
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -2° / 28° | 64 mm |
| February | 0° / 32° | 63 mm |
| March | 5° / 42° | 94 mm |
| April | 11° / 52° | 98 mm |
| May | 17° / 62° | 114 mm |
| June | 22° / 71° | 90 mm |
| July | 24° / 75° | 102 mm |
| August | 23° / 73° | 90 mm |
| September | 19° / 66° | 75 mm |
| October | 12° / 54° | 74 mm |
| November | 6° / 43° | 87 mm |
| December | 1° / 33° | 79 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 Butler County, OH
The most comfortable months to visit Butler County, OH are typically June, September and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -7°C low). May is usually the wettest month.
Where to stay near Butler County
Visiting or relocating to Butler County, OH? Compare hotels and short-term rentals across the county — live availability and prices.
Top-rated places to stay near Butler County
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a move to Butler County?
Get relocation and cost-of-living insights for Butler County, OH by email. No spam, unsubscribe anytime.
More from Ohio
Population 1,321,635
Population 1,249,418
Population 827,878
Population 538,087
Full rankings of Ohio counties
Statewide data for Ohio
Population, race, income, age, and trends across Ohio
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.