Plainfield is located in Indiana. Plainfield, Indiana has a population of 36,511. Plainfield is less family-centric than the surrounding county with 34% households with children. The county percentage for households with children is 37%.
The median household income in Plainfield, Indiana is $63,812. The median household income for the surrounding county is $83,352 compared to the national median of $66,222. The median age of people living in Plainfield is 37.4 years.
The average high temperature in July is 85.6 degrees, with an average low temperature in January of 18.5 degrees. The annual precipitation is 40.95.