Washington County (Ohio)

The Washington County is a county located in the U.S. state of Ohio. In the census in 2010, the County had 61 778 inhabitants and a population density of 37.6 inhabitants per square kilometer. The administrative headquarters ( County Seat) is Marietta.


The County is located in southeastern Ohio at the mouth of the Muskingum River in the Ohio River, the Washington County is bordered to the south and southwest of West Virginia, from which it is separated by the Ohio. It has an area of 1,658 square kilometers, of which 13 square kilometers are water surface. At the Washington County borders the following counties:


The Washington County was formed from the original County as free signified territory on 27 July 1788. It was named (1789-1797) to George Washington (1732-1799), leader of the Continental Army in the American Revolutionary War and the first President of the United States.

Demographic data

According to the census in 2010 lived in Washington County 61 778 people in 25 166 households. The population density was 37.8 inhabitants per square kilometer.

The racial the population was composed of 96.5 percent white, 1.1 percent African American, 0.2 percent Native American, 0.6 percent Asian and other ethnic groups; 1.5 percent were descended from two or more races. Regardless of ethnicity were 0.7 percent of the population are Hispanic or Latino of any race.

In the 25 166 households lived statistically 2.37 per person.

20.9 percent of the population were under 18 years old, 61.6 percent were between 18 and 64 and 17.5 percent were 65 years or older. 51.2 percent of the population was female.

The median income for a household was $ 41,345. The per capita income was $ 22,256. 13.9 percent of the population lived below the poverty line.

Places in Washington County


  • Belpre
  • Marietta


  • Beverly
  • Lowell
  • Lower Salem
  • Mack castle
  • Matamoras

Census-designated places (CDP )

  • Devola
  • Little Hocking
  • Newport

Unincorporated communities other

  • Barlow
  • Bartlett
  • Coal Run
  • Cutler
  • Fleming
  • German Town
  • Reno
  • Vincent
  • Waterford
  • Watertown
  • Whipple
  • Wingett Run


The Washington County is divided into 22 townships:

  • Adams Township
  • Aurelius Township
  • Barlow Township
  • Belpre Township
  • Decatur Township
  • Dunham Township
  • Fairfield Township
  • Fearing Township
  • Grandview Township
  • Independence Township
  • Lawrence Township
  • Liberty Township
  • Ludlow Township
  • Marietta Township
  • Muskingum Township
  • Newport Township
  • Palmer Township
  • Salem Township
  • Warren Township
  • Waterford Township
  • Watertown Township
  • Wesley Township

The cities of Belpre and Marietta belong to any Township.