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Kentucky Counties
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Kentucky Counties

Kentucky has one hundred and twenty counties, third in the US behind Texas's (254) and Georgia's (159.) Washington County was the first county formed in the Commonwealth of Kentucky when it reached statehood, and the sixteenth county formed

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Ohio County, Kentucky

Ohio County Education, Geography, and HistoryOhio County, Kentucky Courthouse

Ohio County is a county located in the state of Kentucky. Based on the 2010 census, the population was 23,842. Its county seat is Hartford. The county is named after the Ohio River, which originally formed its northern boundary. It is a dry county, which means that the sale of alcohol is restricted or prohibited.

Etymology - Origin of Ohio County Name

 It was named for the Ohio River, which originally formed its northern boundary, but lost its northern portions in 1829, when Daviess County and Hancock County were formed.


County QuickFacts: Census Bureau Quick Facts

Ohio County History

Ohio County was formed in 1798 from land given by Hardin County. Ohio was the 35th Kentucky county in order of formation. It is located in the Western Coal Field region of the state.

The first settlements in Ohio County were Barnetts Station and Hartford. In 1865, during the American Civil War, the courthouse in Hartford was burned by Kentucky Confederate cavalry because it was being used to house soldiers of the occupying Union Army. The county records were removed first and preserved. Ohio County is famous for its coal mines, which in the 1970s produced much of the nation's coal

The elevation in the county ranges from 365 to 800 feet above sea level. In 2000 the county population was 22,916 in a land area of 593.79 square miles, an average of 38.6 people per square mile. The county seat is Hartford.

Geography: Land and Water

As reported by the Census Bureau, the county has a total area of 596 square miles (1,540 km2), of which 587 square miles (1,520 km2) is land and 9.0 square miles (23 km2) (1.5%) is water. It is the fifth-largest county by area in Kentucky.

Ohio County is part of the Western Coal Fields region of Kentucky. Much of Ohio County is farmland and the eastern and northern parts have rolling hills. Of the 120 counties in Kentucky, it is the fifth largest. The county is intersected by the Rough River and the Green River runs along its southwestern border.

Neighboring Counties

Bordering counties are as follows:

  • North: Hancock County
  • Northeast: Breckinridge County
  • East: Grayson County
  • Southeast: Butler County
  • Southwest: Muhlenberg County
  • West: McLean County
  • Northwest: Daviess County


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