City Hall     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 concerns. Address   City Hall Annex 415 East "B" Street Ontario, CA 91764     Phone (909) 395-2000     Hours Monday - Thursday 7:30am - 5:30pm   Friday 8:00am - 5:00pm

City Hall 2010 Holiday Closures     New Year's Day January 1   Martin Luther King, Jr. January 18   President's Day February 15   Memorial Day May 31   Independence Day (Observed) July 5   Labor Day September 6   Columbus Day October 11   Veterans Day November 11   Thanksgiving November 25 - 26   Christmas Eve December 24   New Year's Eve December 31   Holiday Refuse schedules, please click here.