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Contact Us

Contact Us

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.


City Hall
303 East "B" Street
Ontario, California  91764

City Hall Annex
415 East "B" Street
Ontario, California  91764


(909) 395-2000


Mon - Thurs 7:30am - 5:30pm
Fri 8:00am - 5:00pm


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