Located at the heart of downtown, Ontario City Hall provides a wide range of services. City departments are ready to assist and are happy to help residents and businesses with their questions and needs.
Address:
City Hall
303 East "B" Street
Ontario, California 91764
City Hall Annex
415 East "B" Street
Ontario, California 91764
Phone:
(909) 395-2000
Hours:
Mon - Thurs 7:30am - 5:30pm
Fri 8:00am - 5:00pm