Old Washington is located in Ohio. Old Washington, Ohio has a population of 334. Old Washington is less family-centric than the surrounding county with 23.4% of the households containing married families with children. The county average for households married with children is 26.4%.
The median household income in Old Washington, Ohio is $52,125. The median household income for the surrounding county is $42,744 compared to the national median of $57,652. The median age of people living in Old Washington is 41.5 years.
The average high temperature in July is 85.2 degrees, with an average low temperature in January of 21.8 degrees. The average rainfall is approximately 40.4 inches per year, with 18.1 inches of snow per year.