Champaign County, Ohio

Champaign County: County in Ohio, United States


Champaign County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 40,097 and a population density of 36 people per km². After 10 years in 2020 county had an estimated population of 38,960 inhabitants. Its county seat is Urbana. The county was created 218 years ago in 1805.

Champaign County lies in western Ohio between Columbus and Dayton. Formed in 1805, it was named for the French province Champagne, likely because of the terrain’s resemblance to rolling hills.

The county was first settled by migrants from Virginia and Kentucky. Agriculture and manufacturing drove growth in cities like **Urbana**, the county seat.

### Major Cities and Features

Notable cities and features of Champaign County include:

- **Urbana** - Historic county seat and site of the Champaign County Fairgrounds.

- **Mechanicsburg** - Village settled in 1834 with well-preserved architecture and charm.

- **Cedar Bog Nature Preserve** - Natural wetland area with rare plants and wildlife.

- **Ohio Caverns** - Popular underground caverns offering tours since 1897.

### Things to See and Do

Top attractions and activities in Champaign County include:

- Exploring underground rock formations and stalactites at **Ohio Caverns**.

- Hiking trails and viewing rare orchids at the unique **Cedar Bog Nature Preserve**.

- Learning history and touring buildings in charming downtown **Urbana**.

- Sampling local wines at the **Dragonfly Vineyard & Wine Cellar** in Mechanicsburg.

- Attending annual events like the **Champaign County Fair** and **Country Concert**.

Champaign County offers scenic rural charm, natural beauty, and historic small town appeal perfect for a relaxing Ohio getaway.

Champaign County locator map
Location of Champaign County on Ohio map.

Quick Facts about Champaign County

Population : 38,960 (2020)
Country : United States of America
State : Ohio (United States)
Different from : Champaign County
Plate code : 11
Area : 1113 km2
Official name : Champaign County
Water as percent of area : 0.3%
Land as percent of area : 99.7%
Capital : Urbana
Establishment : March 03, 1805
Time Zone : America/New_York
Local time : 08:27:13 (1st October 2023)
Density : 35 Pop. per km² as of 2020
Population growth : -2.92% (2010-2020)
Weather : 79℉ Sunny 7-days weather
Champaign County Courthouse  Ohio image
Champaign County Courthouse Ohio
Champaign County Courthouse  Ohio image


Champaign County is located at 40°8'16"N 83°46'10"W (40.1376700, -83.7695000). It has 6 neighbors: Clark County, Madison County, Logan County, Miami County, Shelby County and Union County.

Champaign County map

The largest city of Champaign County is North Lewisburg with a population of 1,471. Other cities include and Mutual population 102. See all Champaign County cities & populated places.

Champaign County Populated Places

Cities, towns, neighborhoods & other populated places in Champaign County.

City Name Population Title
Urbana 11,415 Township in Champaign County, Illinois
Saint Paris 2,011 Village in Champaign County, Ohio, United States
North Lewisburg 1,471 City in Champaign County, Ohio, United States of America
Christiansburg 503 Village in Champaign County, Ohio, United States
Woodstock 288 Village in Champaign County, Ohio, United States
Mutual 102 Human settlement in Champaign County, Ohio, United States of America


Champaign County forecast: Sunny, with a high near 79. Northeast wind 3 to 7 mph. more

Champaign County has 6 neighbours.

  • Urbana


According to census records, the population of Champaign County decreased by 2.92% in 10 years.

Year Population % Change Method
2010 40,097 - census
2011 39,824 -0.69% estimation process
2012 39,573 -0.63% estimation process
2013 39,461 -0.28% estimation process
2014 39,078 -0.98% estimation process
2015 38,963 -0.3% estimation process
2016 38,741 -0.57% estimation process
2017 38,851 0.28% estimation process
2018 38,785 -0.17% estimation process
2019 38,885 0.26% estimation process
2020 38,960 0.19% estimation process

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People born in Champaign County (10)

People born in Champaign County, including sport shooter Charles Winder, Ohio Legislator Charles D. Conover, botanist Emery Clarence Leonard, .


Other places with the same name (2)

Ohio Other Counties (more counties)

County Name Population Title
Franklin County 1,324,624 County in Massachusetts, United States
Cuyahoga County 1,227,883 County in Ohio, United States
Columbus 884,356 The fifteenth most populous city in the United States and the center of the Columbus metropolitan area.
Hamilton County 817,985 County in New York, United States
Summit County 538,866 County in northern Utah, United States
Montgomery County 531,610 County in Ohio, United States
Lucas County 428,294 County in Ohio, United States
Butler County 385,648 County in Ohio, United States of America
Cleveland 378,589 The second most populous city in Ohio and the center of the Cleveland metropolitan area.
Stark County 369,772 County in Ohio, United States
Lorain County 312,172 County in Ohio, United States
Cincinnati 304,548 The third most populous city in Ohio and the center of the Cincinnati metropolitan area.
Toledo 271,455 The fourth most populous city in Ohio and the center of the Toledo metropolitan area.
Warren County 238,412 County in New York, United States
Lake County 229,569 County in Ohio, United States
Mahoning County 226,075 County in Ohio, United States