Plainfield Real EstatePlainfield is located in Massachusetts. Plainfield, Massachusetts has a population of 676. Plainfield is less family-centric than the surrounding county with 22.46% of the households containing married families with children. The county average for households married with children is 27.29%. The median household income in Plainfield, Massachusetts is $70,750. The median household income for the surrounding county is $76,959 compared to the national median of $69,021. The median age of people living in Plainfield is 49.4 years. Plainfield WeatherThe average high temperature in July is 76.9 degrees, with an average low temperature in January of 10.9 degrees. The average rainfall is approximately 50.9 inches per year, with 77.7 inches of snow per year. Plainfield MapReal estate near PlainfieldNearby CitiesNearby Cities Homes for Sale |