Ontario’s historic properties and neighborhoods are a tangible symbol of our past. We document their architecture and associated history to inform current and future generations about the City’s unique history. Information about the City’s historic resources are shared with the general public through the City of Ontario’s component of the California Historical Resources Inventory Database (CHRID). The CHRID promotes and protects cultural heritage through documenting and sharing information on historical resources. CHRID was developed through the California State Office of Historic Preservation's Certified Local Government (CLG) Grant Program and partially funded through the Federal Historic Preservation Fund Program.
This website provides public access to historical resource information that has been entered into the CHRID by local governments. This site is maintained and hosted by the City of Ontario and contains information on historic resources within the City. The information contained within this website may not represent a comprehensive list of historical resources. Please refer to the local government, state Information Centers, State Office of Historic Preservation and the Native American Heritage Commission for additional information on cultural or historical resources. The CHRID should not be relied upon as the sole source of local cultural or historical information.
Discover Historic Downtown. Enjoy a leisurely stroll through downtown with the Historic Downtown Ontario self-guided walking tour map in hand. Discover the people, businesses, and architecture associated with Ontario’s buildings and sites. Did you know that downtown was home to Los Angeles famed architect Paul Williams’ “Old Post Office” building on Emporia Avenue, which is now used for an art gallery and work/live lofts? See a collection of Work Progress Administration (WPA) architectural gem buildings, such as the Museum of History and Art, Ontario, on South Euclid Avenue and the United States Post Office on East Holt Boulevard. Don’t forget to have a look at the WPA-sponsored artwork displayed in the lobby of the post office. Complete your tour by visiting Ontario Through the Years history mural located at Ontario Town Square, located on North Euclid Avenue between B and C Streets. The images included in the mural highlight events, people, and places that helped shape Ontario from “The Vision” Era to the “Commitment to Community” Era. The mural commemorates and celebrates Ontario’s past and the framework it has established for the future. A printed copy of the tour guide may be picked up at the Ovitt Family Community Library, the Museum of history and Art, Ontario, or at the Ontario City Hall.
Ontario’s Designated Local Landmarks. Historic landmarks within Ontario are physical testaments of our community’s heritage. The collection of designated landmarks include single and multi-family residences, commercial buildings, landscape sites and parks, churches, and schools. While many individual public and privately owned properties have been designated, many more potential historic landmarks await property owner consent for designation.
Ontario’s Designated Local Historic Districts. Ontario’s historic residential neighborhoods possess their own distinct history, character, and features that help tell its story. Each historic district brochure features a map, photos, and a detailed description of the historical significance of the district and its individual properties. There are currently seven designated historic districts and many more potential historic districts have been identified.