• county
  • FIPS 39017
  • Largest town: Hamilton

Butler County, Ohio

Butler County had 399,542 residents in the Census Vintage 2024 estimate, on 466.5 square miles of land. It ranks 7th of 88 in Ohio by population and 35th by land area.

Population
399,542
#7 of 88 in Ohio · #191 in US
Area
466.5 sq mi
#35 of 88 in Ohio · #2,207 in US
Density
856 / sq mi
#8 of 88 in Ohio · #182 in US
Median household income
$80,066
#11 of 88 in Ohio · #473 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Butler County within Ohio. Pin: Columbus.

Measure from here

Tools and pages that start from Butler County

Butler County population, land area and income

Butler County had 399,542 residents in the Census Vintage 2024 estimate, on 466.5 square miles of land. It ranks 7th of 88 in Ohio by population and 35th by land area. That works out to 856.4 people per square mile, 8.9 times the US average of 96.3, and in the top tenth nationally.

The median county-equivalent in Ohio has 58,250 residents, so Butler County is 6.9 times that size.

Its SAIPE 2023 median household income of $80,066 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

399,542

3144th1st

191st of 3,144 (US)

Land area

467 sq mi

3144th1st

2207th of 3,144 (US)

Density

856.4 / sq mi

3144th1st

182nd of 3,144 (US)

Median household income

$80,066

3143rd1st

473rd of 3,143 (US)

Rank within Ohio (88)

Population

399,542

88th1st

7th of 88 (OH)

Land area

467 sq mi

88th1st

35th of 88 (OH)

Density

856.4 / sq mi

88th1st

8th of 88 (OH)

Median household income

$80,066

88th1st

11th of 88 (OH)

How Butler County's population changed since 2020

Butler County gained 8,655 residents between the July 2020 and July 2024 estimates, a rise of 2.2%. That ranks 14th of 88 in Ohio for growth. The median Ohio county changed by -0.2%, and the state as a whole by +0.7%.

Since the April 2020 estimates base, Butler County recorded 18,309 births and 16,867 deaths, a natural change of +1,442. Net international migration added +10,112 and net domestic migration, people moving to or from other US counties, came to -2,210. The largest single component was international migration, which added 10,112 people.

390.9k2020387.7k2021390.7k2022395.6k2023399.5k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
18,309
Deaths
16,867
Net international migration
+10,112
Net domestic migration
-2,210
Change, July 2023 to July 2024
+3,949

Where Butler County is

The Census internal point of Butler County is at 39.439700, -84.565700. It sits in UTM zone 16N. The map shades Ohio's 88 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Butler County outlined. Dots are towns of 1,000+ people with residents in it.

Shelby County: -0.4%Defiance County: +1.0%Darke County: -0.8%Seneca County: -0.6%Wood County: +0.6%Fayette County: -0.7%Clark County: -0.7%Hocking County: -2.2%Jackson County: +0.2%Miami County: +2.7%Richland County: -0.1%Union County: +13.7%Auglaize County: -1.2%Hancock County: +0.1%Morgan County: -1.6%Van Wert County: -0.1%Hardin County: -1.0%Paulding County: -0.3%Portage County: +1.2%Delaware County: +10.6%Harrison County: -3.1%Ross County: -1.3%Crawford County: -0.9%Clinton County: -0.0%Henry County: -0.5%Pike County: -0.0%Cuyahoga County: -1.7%Highland County: +1.0%Knox County: +1.7%Ottawa County: -1.5%Huron County: -0.6%Erie County: -2.2%Holmes County: +1.0%Lawrence County: -4.0%Marion County: -0.6%Fairfield County: +5.2%Putnam County: -0.6%Guernsey County: -0.5%Vinton County: -2.1%Gallia County: -1.2%Trumbull County: -0.7%Wayne County: -0.2%Perry County: +0.6%Ashland County: -0.1%Fulton County: -1.4%Brown County: +1.4%Lucas County: -1.1%Stark County: -0.1%Medina County: +1.1%Belmont County: -2.4%Williams County: -1.4%Mahoning County: -1.0%Noble County: +1.1%Greene County: +2.5%Preble County: -0.5%Allen County: -1.2%Athens County: +1.3%Jefferson County: -2.0%Adams County: +0.8%Monroe County: -2.3%Washington County: -2.2%Logan County: -0.1%Franklin County: +2.4%Warren County: +5.3%Wyandot County: -2.1%Licking County: +3.4%Hamilton County: +0.8%Clermont County: +2.6%Butler County: +2.2%Coshocton County: +1.1%Geauga County: -0.0%Sandusky County: -0.0%Ashtabula County: -0.6%Carroll County: -0.9%Tuscarawas County: -1.2%Morrow County: +2.7%Montgomery County: +0.1%Mercer County: +0.3%Lake County: -0.1%Pickaway County: +6.0%Madison County: +3.8%Muskingum County: +0.1%Meigs County: -3.0%Columbiana County: -1.8%Lorain County: +2.7%Scioto County: -2.8%Champaign County: +0.4%Summit County: -0.3%
Change 2020 to 2024
  1. < -1.4%
  2. < -0.6%
  3. < -0.0%
  4. < +1.1%
  5. ≥ +1.1%
no data

Orange pin: Butler County internal point. Dark pin: Columbus.

Internal point

Decimal
39.439700, -84.565700
DMS
39°26'22.92"N 84°33'56.52"W
UTM
16N 709491.7E 4368400.5N
Geohash
dp5b7ev0u
Plus code
86FQCCQM+VP

Towns in Butler County

8 incorporated places of 1,000+ people have residents in Butler County, 214,775 people together, or 54% of the county. Each figure counts only the part of the town inside Butler County; towns marked "part" extend into another county. The largest is Hamilton with 63,953.

  1. 01Hamilton63,953
  2. 02Middletown (part)48,332
  3. 03Fairfield45,094
  4. 04Oxford22,585
  5. 05Monroe (part)15,828
  6. 06Trenton14,131
  7. 07Sharonville (part)2,576
  8. 08New Miami2,276
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Butler County

The Census 2024 county adjacency file lists 7 neighbors for Butler County, including 3 across a state line. The most populous is Hamilton County, OH, with 837,359 residents. Distances run between Census internal points in a straight line.

Distance to Columbus and the nearest big city

Columbus is 90.7 miles ENE of Butler County's internal point in a straight line. The nearest place of 100,000 or more is Cincinnati, OH (population 314,915), 20.9 miles away. The nearest place of 10,000 or more is Hamilton, OH (population 63,953), 3.1 miles away.

Butler County FIPS code

The FIPS code of Butler County is 39017: state code 39 for Ohio plus county code 017. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $80,066.

Questions people ask

What is the population of Butler County, Ohio?

The Census Vintage 2024 estimate for July 1, 2024 is 399,542. That is up 8,655 people (2.2%) from the July 2020 estimate of 390,887.

What is the FIPS code of Butler County?

39017. The first two digits (39) are Ohio; the last three (017) identify the county.

What is the largest town in Butler County?

Hamilton, with 63,953 residents inside Butler County in 2024.

Which counties border Butler County?

7 county-equivalents border it in the Census 2024 adjacency file: Hamilton County, OH; Montgomery County, OH; Warren County, OH; Dearborn County, IN; Preble County, OH; Franklin County, IN; Union County, IN.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.