• county
  • FIPS 39021
  • Largest town: Urbana

Champaign County, Ohio

Champaign County had 38,907 residents in the Census Vintage 2024 estimate, on 429.0 square miles of land. It ranks 63rd of 88 in Ohio by population and 47th by land area.

Population
38,907
#63 of 88 in Ohio · #1,208 in US
Area
429.0 sq mi
#47 of 88 in Ohio · #2,370 in US
Density
91 / sq mi
#61 of 88 in Ohio · #985 in US
Median household income
$70,230
#29 of 88 in Ohio · #984 in US

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

Champaign County within Ohio. Pin: Columbus.

Measure from here

Tools and pages that start from Champaign County

Champaign County population, land area and income

Champaign County had 38,907 residents in the Census Vintage 2024 estimate, on 429.0 square miles of land. It ranks 63rd of 88 in Ohio by population and 47th by land area. That works out to 90.7 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; Champaign County is somewhat smaller.

Its SAIPE 2023 median household income of $70,230 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

38,907

3144th1st

1208th of 3,144 (US)

Land area

429 sq mi

3144th1st

2370th of 3,144 (US)

Density

90.7 / sq mi

3144th1st

985th of 3,144 (US)

Median household income

$70,230

3143rd1st

984th of 3,143 (US)

Rank within Ohio (88)

Population

38,907

88th1st

63rd of 88 (OH)

Land area

429 sq mi

88th1st

47th of 88 (OH)

Density

90.7 / sq mi

88th1st

61st of 88 (OH)

Median household income

$70,230

88th1st

29th of 88 (OH)

How Champaign County's population changed since 2020

Champaign County gained 164 residents between the July 2020 and July 2024 estimates, a rise of 0.4%. That ranks 29th 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, Champaign County recorded 1,824 births and 2,074 deaths, a natural change of -250. Net international migration added +64 and net domestic migration, people moving to or from other US counties, came to +374. The largest single component was domestic migration, which added 374 people.

38.7k202038.8k202138.7k202238.9k202338.9k2024
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
1,824
Deaths
2,074
Net international migration
+64
Net domestic migration
+374
Change, July 2023 to July 2024
+50

Where Champaign County is

The Census internal point of Champaign County is at 40.132800, -83.767600. 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 Champaign 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: Champaign County internal point. Dark pin: Columbus.

Internal point

Decimal
40.132800, -83.767600
DMS
40°07'58.08"N 83°46'3.36"W
UTM
17N 264201.1E 4446169.2N
Geohash
dphkmcfq9
Plus code
86GR46MJ+4X

Towns in Champaign County

4 incorporated places of 1,000+ people have residents in Champaign County, 16,433 people together, or 42% of the county. Each figure counts only the part of the town inside Champaign County; towns marked "part" extend into another county. The largest is Urbana with 11,211.

  1. 01Urbana11,211
  2. 02St. Paris1,886
  3. 03Mechanicsburg1,681
  4. 04North Lewisburg1,655
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Champaign County

The Census 2024 county adjacency file lists 6 neighbors for Champaign County. The most populous is Clark County, OH, with 134,985 residents. Distances run between Census internal points in a straight line.

Distance to Columbus and the nearest big city

Columbus is 42.2 miles ESE of Champaign County's internal point in a straight line. The nearest place of 100,000 or more is Dayton, OH (population 136,346), 33.2 miles away. The nearest place of 10,000 or more is Urbana, OH (population 11,211), 1.7 miles away.

Champaign County FIPS code

The FIPS code of Champaign County is 39021: state code 39 for Ohio plus county code 021. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $70,230.

Questions people ask

What is the population of Champaign County, Ohio?

The Census Vintage 2024 estimate for July 1, 2024 is 38,907. That is up 164 people (0.4%) from the July 2020 estimate of 38,743.

What is the FIPS code of Champaign County?

39021. The first two digits (39) are Ohio; the last three (021) identify the county.

What is the largest town in Champaign County?

Urbana, with 11,211 residents inside Champaign County in 2024.

Which counties border Champaign County?

6 county-equivalents border it in the Census 2024 adjacency file: Clark County, OH; Miami County, OH; Union County, OH; Shelby County, OH; Logan County, OH; Madison County, OH.

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.