Champaign County, Ohio

Champaign County
Champaign County Courthouse in Urbana
Flag of Champaign County
Official seal of Champaign County
Map of Ohio highlighting Champaign County
Location within the U.S. state of Ohio
Map of the United States highlighting Ohio
Ohio's location within the U.S.
Coordinates: 40°08′N 83°46′W / 40.14°N 83.77°W / 40.14; -83.77
Country United States
State Ohio
FoundedMarch 1, 1805[1]
Named for"plain" in French
SeatUrbana
Largest cityUrbana
Area
 • Total430 sq mi (1,100 km2)
 • Land429 sq mi (1,110 km2)
 • Water1.2 sq mi (3 km2)  0.3%
Population
 (2020)
 • Total38,714
 • Density90/sq mi (35/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district4th
Websitewww.co.champaign.oh.us

Champaign County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 38,714.[2] Its county seat and largest city is Urbana.[3] The county takes its name from the French word for "open level country".[4] Champaign County became the 18th of 88 Ohio counties on March 1, 1805. It was formed from parts of Greene and Franklin counties by legislative action.[5] Champaign County comprises the Urbana, OH Micropolitan Statistical Area, which is also included in the Dayton–Springfield–Sidney, OH Combined Statistical Area.

  1. ^ "Ohio County Profiles: Champaign County" (PDF). Ohio Department of Development. Archived from the original (PDF) on June 21, 2007. Retrieved April 28, 2007.
  2. ^ 2020 census
  3. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  4. ^ "Agriculture & Natural Resources in Champaign County". Ohio State University Extension. Archived from the original on July 16, 2011. Retrieved September 23, 2010.
  5. ^ The History of Champaign County, Ohio. W. H. Beers & Co. 1881.