Plainfield Real EstatePlainfield is located in Connecticut. Plainfield, Connecticut has a population of 15,138. Plainfield is less family-centric than the surrounding county with 26.04% of the households containing married families with children. The county average for households married with children is 26.29%. The median household income in Plainfield, Connecticut is $67,409. The median household income for the surrounding county is $62,553 compared to the national median of $57,652. The median age of people living in Plainfield is 43 years. Plainfield WeatherThe average high temperature in July is 79.5 degrees, with an average low temperature in January of 14.3 degrees. The average rainfall is approximately 51.1 inches per year, with 37.9 inches of snow per year. Plainfield MapReal estate near PlainfieldNearby CitiesNearby Cities Homes for Sale |