Contact Us

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City Hall Address:
City of Union City
34009 Alvarado-Niles Road
Union City, California 94587
Map

Main Phone Number:
Telephone (510) 471-3232
Fax (510) 475-7318

Hours:
Monday through Thursdays, 8:00 A.M. to 6:00 P.M.
Fridays: 8:00 A.M. to 5:00 P.M.
City Hall is closed on alternate Fridays.