Plainfield, New Jersey, is a city located in Union County. It is known for its diverse community and rich history, with roots dating back to the 17th century. The city features a mix of residential neighborhoods, parks, and local businesses, making it a vibrant place to live and work. The city is also home to several historic sites, including the Plainfield Public Library and the Cedar Brook Park. With convenient access to major highways and public transportation, Plainfield offers residents easy commuting options to nearby cities like Newark and New York City.