• county
  • FIPS 39135
  • Largest town: Eaton

Preble County, Ohio

Preble County had 40,801 residents in the Census Vintage 2024 estimate, on 424.2 square miles of land. It ranks 61st of 88 in Ohio by population and 48th by land area.

Population
40,801
#61 of 88 in Ohio · #1,176 in US
Area
424.2 sq mi
#48 of 88 in Ohio · #2,387 in US
Density
96 / sq mi
#57 of 88 in Ohio · #939 in US
Median household income
$76,621
#14 of 88 in Ohio · #595 in US

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

Preble County within Ohio. Pin: Columbus.

Measure from here

Tools and pages that start from Preble County

Preble County population, land area and income

Preble County had 40,801 residents in the Census Vintage 2024 estimate, on 424.2 square miles of land. It ranks 61st of 88 in Ohio by population and 48th by land area. That works out to 96.2 people per square mile, near the US average of 96.3, and above the national county median.

The median county-equivalent in Ohio has 58,250 residents; Preble County is somewhat smaller.

Its SAIPE 2023 median household income of $76,621 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

40,801

3144th1st

1176th of 3,144 (US)

Land area

424 sq mi

3144th1st

2387th of 3,144 (US)

Density

96.2 / sq mi

3144th1st

939th of 3,144 (US)

Median household income

$76,621

3143rd1st

595th of 3,143 (US)

Rank within Ohio (88)

Population

40,801

88th1st

61st of 88 (OH)

Land area

424 sq mi

88th1st

48th of 88 (OH)

Density

96.2 / sq mi

88th1st

57th of 88 (OH)

Median household income

$76,621

88th1st

14th of 88 (OH)

How Preble County's population changed since 2020

Preble County lost 215 residents between the July 2020 and July 2024 estimates, a drop of 0.5%. That ranks 51st 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, Preble County recorded 1,690 births and 2,342 deaths, a natural change of -652. Net international migration added +38 and net domestic migration, people moving to or from other US counties, came to +399. The largest single component was natural change, which removed 652 people.

41.0k202040.9k202140.6k202240.6k202340.8k2024
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
1,690
Deaths
2,342
Net international migration
+38
Net domestic migration
+399
Change, July 2023 to July 2024
+238

Where Preble County is

The Census internal point of Preble County is at 39.738800, -84.644800. 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 Preble 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: Preble County internal point. Dark pin: Columbus.

Internal point

Decimal
39.738800, -84.644800
DMS
39°44'19.68"N 84°38'41.28"W
UTM
16N 701813.6E 4401419.7N
Geohash
dp5f1f5x3
Plus code
86FQP9Q4+G3

Towns in Preble County

5 incorporated places of 1,000+ people have residents in Preble County, 14,867 people together, or 36% of the county. Each figure counts only the part of the town inside Preble County; towns marked "part" extend into another county. The largest is Eaton with 8,337.

  1. 01Eaton8,337
  2. 02Camden1,990
  3. 03Lewisburg1,737
  4. 04New Paris1,486
  5. 05West Alexandria1,317
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Preble County

The Census 2024 county adjacency file lists 5 neighbors for Preble County, including 2 across a state line. The most populous is Montgomery County, OH, with 537,443 residents. Distances run between Census internal points in a straight line.

Distance to Columbus and the nearest big city

Columbus is 88.5 miles E of Preble County's internal point in a straight line. The nearest place of 100,000 or more is Dayton, OH (population 136,346), 23.9 miles away. The nearest place of 10,000 or more is Richmond, IN (population 35,561), 14.5 miles away.

Preble County FIPS code

The FIPS code of Preble County is 39135: state code 39 for Ohio plus county code 135. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $76,621.

Questions people ask

What is the population of Preble County, Ohio?

The Census Vintage 2024 estimate for July 1, 2024 is 40,801. That is down 215 people (0.5%) from the July 2020 estimate of 41,016.

What is the FIPS code of Preble County?

39135. The first two digits (39) are Ohio; the last three (135) identify the county.

What is the largest town in Preble County?

Eaton, with 8,337 residents inside Preble County in 2024.

Which counties border Preble County?

5 county-equivalents border it in the Census 2024 adjacency file: Montgomery County, OH; Butler County, OH; Wayne County, IN; Darke County, OH; 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.