Sewer Service Areas in Ontario, CA

We connect callers across the City of Ontario, in ZIP codes 91762, 91761 and 91764, plus Ontario PO box addresses in 91758.

Call (909) 834-5101

Coverage

Ontario ZIP codes we cover

Ontario's neighborhoods range from 1950s homes around Euclid Avenue to 1980s and newer construction near the airport and in Ontario Ranch. The age of the neighborhood says a lot about what is under the ground.

Ontario, CA 91762

Includes Euclid Avenue at G Street, the Ontario Museum of History & Art on Euclid, and Chaffey High School. Most homes built in the 1950s, based on census data.

See 91762 →

Ontario, CA 91764

Home to Ontario City Hall on East B Street and Ontario Mills. Most homes built in the 1950s, based on census data.

See 91764 →

Ontario, CA 91761

Includes Ontario International Airport and Westwind Park on East Riverside Drive. Most homes built in the 1980s, based on census data.

See 91761 →

About 91758

91758 is an Ontario ZIP code used for PO boxes rather than street addresses, so it does not have its own neighborhood. If your mail goes to a 91758 PO box, your property is in one of the ZIP codes above, and the same number works: (909) 834-5101.

Sewer lines and the City of Ontario

Who owns which part of the pipe? The City of Ontario maintains the part of your sewer lateral that sits in the public right-of-way (under the sidewalk, parkway or street). The part on your property is the owner's responsibility. If you are unsure where a problem is, the city suggests checking with its Municipal Utilities Company before you sign a repair contract.

If sewage is overflowing from a manhole or public sewer in the street, report it to the City of Ontario Municipal Utilities Company, which handles sewer spills in the public system.

Talk to a sewer contractor in Ontario

One call connects you with an independent local contractor. Ask about pricing and scheduling before any work starts.

Call (909) 834-5101