Dunellen is a borough in Middlesex County, in the U.S. state of New Jersey. It is located within the Raritan Valley region. As of the 2020 United States census, the borough's population was 7,637, an increase of 410 (+5.7%) from the 2010 census count of 7,227, which in turn reflected an increase of 404 (+5.9%) from the 6,823 counted in the 2000 census.

Piscataway is a township in Middlesex County, in the U.S. state of New Jersey. It is a suburb of the New York metropolitan area, in the Raritan Valley. As of the 2020 United States census, the township's population was 60,804, an increase of 4,760 (+8.5%) from the 2010 census count of 56,044, which in turn reflected an increase of 5,562 (+11.0%) from 50,482 at the 2000 census.