Metuchen is a suburban borough in Middlesex County in the U.S. state of New Jersey. The borough is a commuter town of New York City, located in the heart of the Raritan Valley region within the New York Metropolitan area. The borough, along with Edison, is a regional commercial hub for Central New Jersey. The borough is 6 miles northeast of New Bruns…Metuchen is a suburban borough in Middlesex County in the U.S. state of New Jersey. The borough is a commuter town of New York City, located in the heart of the Raritan Valley region within the New York Metropolitan area. The borough, along with Edison, is a regional commercial hub for Central New Jersey. The borough is 6 miles northeast of New Brunswick, 17 miles southwest of Newark, 20 miles southwest of Jersey City, and 22 miles southwest of Manhattan. As of the 2020 United States census, the borough's population was 15,049, an increase of 1,475 from the 2010 census count of 13,574, which in turn reflected an increase of 734 from the 12,840 counted in the 2000 census.