Ontario Town Square clock tower on a clear day, downtown Ontario, California

City·San BernardinoCounty,CA

Ontario, California

Where Sapphire Realty is based: a San Bernardino County city of about 50 square miles with its own international airport, a Metrolink station and housing from the 1900s core to new construction in the south.

San BernardinoCountyCAActive service area

Facts on this page are drawn from the sources listed at the end. Selling here? The seller pages cover every route.

At a glance

CountySan Bernardino
StateCA
Area typeCity
CoverageActive service area
Last reviewedSeptember 12, 2026

From this area’s own record. The sourced local orientation facts are in the orientation section and the sources at the end of the page.

Local orientation

Facts on this page are drawn from the sources listed at the end. What the place is like, in the city’s own description — not a map, not to scale.

What is Ontario like?

Ontario is a city in the western part of San Bernardino County, in the region Southern Californians call the Inland Empire, roughly 35 miles east of downtown Los Angeles. The City of Ontario reports that it was incorporated on December 10, 1891, covers about 50 square miles and sits at roughly 925 feet. Ontario International Airport (ONT) lies inside the city limits and is run by the Ontario International Airport Authority, a joint powers authority of the City and San Bernardino County. It is also where Sapphire Realty’s office is: 3400 Inland Empire Blvd, Suite 101, near the I-10 corridor.

The city reads as three broad bands. The historic core around Euclid Avenue and the older tracts north of the I-10 hold the city’s early-twentieth-century and mid-century homes. The middle band, either side of the I-10 and the airport, mixes mid-century tracts with commercial and logistics uses. The south — the area the City plans as Ontario Ranch — is where most new construction has happened in the last two decades, with newer tracts, community facilities districts and larger master-planned developments.

Residential Ontario is covered by ZIP codes 91761 (south and east, including Ontario Ranch), 91762 (west) and 91764 (north, toward the airport and the I-10). Buyers searching by ZIP will find noticeably different housing stock in each.

Local orientation facts (sourced)
  • County: San Bernardino County, western end; Inland Empire.
  • Incorporated: December 10, 1891 (City of Ontario).
  • Area and elevation: about 50 square miles at roughly 925 feet (City of Ontario).
  • Airport: Ontario International Airport (ONT), inside the city, governed by the Ontario International Airport Authority.
  • Rail and bus: Metrolink Ontario–East (Riverside Line); Omnitrans local buses.
  • Freeways: I-10, I-15 and SR-60.
  • ZIP codes: 91761, 91762, 91764.
  • Sapphire Realty office: 3400 Inland Empire Blvd, Suite 101, Ontario, CA 91764.

Every figure above is taken from the sources listed at the end of the page. We do not publish home prices, appreciation, days on market, school ratings or crime figures on area pages.

Two sides of the same city

For buyers, and for sellers

The same city, read from each side. Considerations to weigh — not rankings and not advice.

What should buyers understand about Ontario?

Location and access. The I-10 runs east–west through the city, the I-15 runs north–south along its eastern side and State Route 60 runs along the south. Metrolink’s Ontario–East station on the Riverside Line offers a rail option toward Los Angeles, and Omnitrans buses serve the city. Living near ONT means convenient flights and, in some tracts, aircraft noise — ask about the flight paths for any home that matters to you.

Housing variety. Expect the oldest homes near the historic core, mid-century ranch tracts across the middle of the city, and new-construction neighborhoods in Ontario Ranch to the south. Newer developments often carry community facilities district (Mello-Roos) assessments that appear on the tax bill and in the seller’s disclosures; compare monthly carrying costs, not just price.

What to check. The age of the roof, plumbing and electrical in older homes; HOA dues where they exist; special assessments in newer tracts; and, in the south, which schools and services are still being built out. None of that is a reason to avoid an area — it is the list of questions to ask before an offer.

The process is the same anywhere in California — financing first, then the search, an offer, inspection and appraisal, closing — and how buying works walks through it. Current listings are in the property search; requesting a showing there is a request, not a commitment.

What should sellers in Ontario consider?

Condition is the first variable. Ontario’s three bands of housing age mean buyers arrive with different expectations: a 1920s bungalow near Euclid is compared with other older homes, not with new Ontario Ranch construction. Price and prepare against the homes a buyer would actually see next.

Competing listings and route. New-construction inventory in the south can compete with a resale listing on price per square foot and warranties; older homes compete on lot, location and character. If the home needs work, an as-is listing or a direct offer may fit better than a prepared listing — selling a house that needs repairs weighs the choices.

Timing. A fixed move date changes the route more than the city does; see selling when timing matters.

Whichever way you lean, the same three pages apply: how a listing and a direct offer compare, what listing with us involves, and what a direct offer means. California disclosure duties apply in every city and under every route.

Sources & review

Last reviewed by Sapphire Realty: September 12, 2026. Reviewed by Alejandro (Alika) Castellon Jr., Broker-Associate (CA DRE #01964932). Facts on this page are taken from the sources listed; we do not publish home prices, appreciation, days on market, school ratings or crime figures on area pages.

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