Westfield is a town located in Union County within the state of New Jersey in the United States. Situated in the heart of the Rahway Valley region, it serves as a prominent commercial and cultural hub in northern-central New Jersey.
The town functions as a wealthy bedroom community for New York City within the broader New York metropolitan area. In 2018, Westfield was ranked by Bloomberg as the 99th highest-income place in the United States and the 18th highest-income location in New Jersey. Additionally, a 2014 nationwide survey ranked Westfield as the 30th safest city to live in the United States.