• county
  • FIPS 39001
  • Largest town: West Union

Adams County, Ohio

Adams County had 27,671 residents in the Census Vintage 2024 estimate, on 583.9 square miles of land. It ranks 76th of 88 in Ohio by population and 10th by land area.

Population
27,671
#76 of 88 in Ohio · #1,513 in US
Area
583.9 sq mi
#10 of 88 in Ohio · #1,685 in US
Density
47 / sq mi
#82 of 88 in Ohio · #1,523 in US
Median household income
$55,693
#76 of 88 in Ohio · #2,262 in US

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

Adams County within Ohio. Pin: Columbus.

Measure from here

Tools and pages that start from Adams County

Adams County population, land area and income

Adams County had 27,671 residents in the Census Vintage 2024 estimate, on 583.9 square miles of land. It ranks 76th of 88 in Ohio by population and 10th by land area. That works out to 47.4 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Ohio has 58,250 residents, so Adams County has 48% of the typical county's population.

Its SAIPE 2023 median household income of $55,693 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

27,671

3144th1st

1513th of 3,144 (US)

Land area

584 sq mi

3144th1st

1685th of 3,144 (US)

Density

47.4 / sq mi

3144th1st

1523rd of 3,144 (US)

Median household income

$55,693

3143rd1st

2262nd of 3,143 (US)

Rank within Ohio (88)

Population

27,671

88th1st

76th of 88 (OH)

Land area

584 sq mi

88th1st

10th of 88 (OH)

Density

47.4 / sq mi

88th1st

82nd of 88 (OH)

Median household income

$55,693

88th1st

76th of 88 (OH)

How Adams County's population changed since 2020

Adams County gained 220 residents between the July 2020 and July 2024 estimates, a rise of 0.8%. That ranks 26th 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, Adams County recorded 1,358 births and 1,849 deaths, a natural change of -491. Net international migration added +196 and net domestic migration, people moving to or from other US counties, came to +490. The largest single component was natural change, which removed 491 people.

27.5k202027.6k202127.4k202227.5k202327.7k2024
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
1,358
Deaths
1,849
Net international migration
+196
Net domestic migration
+490
Change, July 2023 to July 2024
+129

Where Adams County is

The Census internal point of Adams County is at 38.834500, -83.478100. It sits in UTM zone 17N. The map shades Ohio's 88 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Adams 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: Adams County internal point. Dark pin: Columbus.

Internal point

Decimal
38.834500, -83.478100
DMS
38°50'4.20"N 83°28'41.16"W
UTM
17N 284903.5E 4301329.0N
Geohash
dnusumt57
Plus code
86CRRGMC+QQ

Towns in Adams County

3 incorporated places of 1,000+ people have residents in Adams County, 6,706 people together, or 24% of the county. Each figure counts only the part of the town inside Adams County; towns marked "part" extend into another county. The largest is West Union with 3,088.

  1. 01West Union3,088
  2. 02Manchester1,858
  3. 03Peebles1,760
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Adams County

The Census 2024 county adjacency file lists 6 neighbors for Adams County, including 2 across a state line. The most populous is Scioto County, OH, with 71,798 residents. Distances run between Census internal points in a straight line.

Distance to Columbus and the nearest big city

Columbus is 82.0 miles NNE of Adams County's internal point in a straight line. The nearest place of 100,000 or more is Cincinnati, OH (population 314,915), 59.1 miles away. The nearest place of 10,000 or more is Portsmouth, OH (population 17,489), 29.0 miles away.

Adams County FIPS code

The FIPS code of Adams County is 39001: state code 39 for Ohio plus county code 001. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $55,693.

Questions people ask

What is the population of Adams County, Ohio?

The Census Vintage 2024 estimate for July 1, 2024 is 27,671. That is up 220 people (0.8%) from the July 2020 estimate of 27,451.

What is the FIPS code of Adams County?

39001. The first two digits (39) are Ohio; the last three (001) identify the county.

What is the largest town in Adams County?

West Union, with 3,088 residents inside Adams County in 2024.

Which counties border Adams County?

6 county-equivalents border it in the Census 2024 adjacency file: Scioto County, OH; Brown County, OH; Highland County, OH; Pike County, OH; Mason County, KY; Lewis County, KY.

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.