WordNet (r) 3.0 (2006):

Jersey City
    n 1: a city in northeastern New Jersey (opposite Manhattan)

U.S. Gazetteer Places (2000):

Jersey City, NJ -- U.S. city in New Jersey
   Population (2000):    240055
   Housing Units (2000): 93648
   Land area (2000):     14.916045 sq. miles (38.632377 sq. km)
   Water area (2000):    6.195422 sq. miles (16.046068 sq. km)
   Total area (2000):    21.111467 sq. miles (54.678445 sq. km)
   FIPS code:            36000
   Located within:       New Jersey (NJ), FIPS 34
   Location:             40.722102 N, 74.065385 W
   ZIP Codes (1990):     07302 07304 07305 07306 07307 07310
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Jersey City, NJ
    Jersey City