Ohio County, Indiana

Ohio County
Ohio County Courthouse in Rising Sun
Ohio County Courthouse in Rising Sun
Map of Indiana highlighting Ohio County
Location within the U.S. state of Indiana
Map of the United States highlighting Indiana
Indiana's location within the U.S.
Coordinates: 38°57′N 84°58′W / 38.95°N 84.97°W / 38.95; -84.97
Country United States
State Indiana
Founded1844
Named forOhio River
SeatRising Sun
Largest cityRising Sun
Area
 • Total87.43 sq mi (226.4 km2)
 • Land86.14 sq mi (223.1 km2)
 • Water1.29 sq mi (3.3 km2)  1.48%
Population
 (2020)
 • Total5,940
 • Estimate 
(2023)
6,004 Increase
 • Density68/sq mi (26/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district6th
Indiana county number 58
FIPS County Code 115
Smallest county in Indiana in area
Least populated county in Indiana

Ohio County is a county located in southeastern Indiana. With a 2020 population of 5,940, and an area of just 87 square miles, Ohio County is the smallest county in Indiana by area and the least populous.[1] The county seat and only incorporated municipality is Rising Sun.[2][3] The county was officially established in 1844 and was one of the last Indiana counties to be created. Ohio County borders the state of Kentucky across the Ohio River for which it was named. It is part of the Cincinnati, OH-KY-IN Metropolitan Statistical Area. The county is divided into four townships which provide local services.[4][5] Three state roads pass through or into the county.[6]

  1. ^ "Ohio County QuickFacts". United States Census Bureau. Archived from the original on July 4, 2011. Retrieved September 25, 2011.
  2. ^ "Find a County – Ohio County IN". National Association of Counties. Archived from the original on February 27, 2014. Retrieved December 3, 2011.
  3. ^ "Ohio County IN – County Subdivision and Place. GCT-PH1. Population, Housing Units, Area, and Density: 2000". US Census Bureau. Archived from the original on February 16, 2020. Retrieved February 9, 2011.
  4. ^ "Ohio". Indiana Township Association. Archived from the original on June 1, 2009. Retrieved December 3, 2011.
  5. ^ "Duties". United Township Association of Indiana. Retrieved January 6, 2011.
  6. ^ "Indiana Transportation Map 2009–2010" (PDF). Indiana Dept. of Transportation. 2009. Retrieved December 16, 2010.