Plainfield is located in New Jersey. Plainfield, New Jersey has a population of 51,716. Plainfield is less family-centric than the surrounding county with 34% households with children. The county percentage for households with children is 34%.
The median household income in Plainfield, New Jersey is $59,672. The median household income for the surrounding county is $83,669 compared to the national median of $66,222. The median age of people living in Plainfield is 37.7 years.
The average high temperature in July is 86.6 degrees, with an average low temperature in January of 21.5 degrees. The annual precipitation is 49.63.