Plainfield is located in Ohio. Plainfield, Ohio has a population of 139. Plainfield is more family-centric than the surrounding county with 37.14% of the households containing married families with children. The county average for households married with children is 29.67%.
The median household income in Plainfield, Ohio is $41,250. The median household income for the surrounding county is $43,251 compared to the national median of $57,652. The median age of people living in Plainfield is 42.3 years.
The average high temperature in July is 83.3 degrees, with an average low temperature in January of 19.4 degrees. The average rainfall is approximately 39.7 inches per year, with 21.1 inches of snow per year.