'Union City, CA' definitions:

Union City, CA -- U.S. city in California

From: Gazetteer 2000
Name :
Union City, CA -- U.S. city in California
Population (2000) :
66869
Housing Units (2000) :
18877
Land area (2000) :
19.254037 sq. miles (49.867725 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
19.254037 sq. miles (49.867725 sq. km)
FIPS code :
81204
Located within :
California (CA), FIPS 06
Location :
37.592184 N, 122.045775 W
ZIP Codes (1990) :
94587
Note :
some ZIP codes may be omitted esp. for suburbs.