Emerson, NJ -- U.S. borough in New Jersey Population (2000): 7197 Housing Units (2000): 2398 Land area (2000): 2.237658 sq. miles (5.795507 sq. km) Water area (2000): 0.183864 sq. miles (0.476206 sq. km) Total area (2000): 2.421522 sq. miles (6.271713 sq. km) FIPS code: 21450 Located within: New Jersey (NJ), FIPS 34 Location: 40.975140 N, 74.027258 W ZIP Codes (1990): 07630 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Emerson, NJ Emerson