Roselle, NJ -- U.S. borough in New Jersey Population (2000): 21274 Housing Units (2000): 7870 Land area (2000): 2.643113 sq. miles (6.845630 sq. km) Water area (2000): 0.010425 sq. miles (0.027000 sq. km) Total area (2000): 2.653538 sq. miles (6.872630 sq. km) FIPS code: 64620 Located within: New Jersey (NJ), FIPS 34 Location: 40.653502 N, 74.260584 W ZIP Codes (1990): 07203 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Roselle, NJ Roselle