Homes Under $300K in Ontario, CA

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3 beds New construction With a pool

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22 of 51 Listings

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Homes Under $300K in Ontario, CA

22 of 51 Listings

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Thomas O'Leary

Realty.com

Lic. #01840925

Call Thomas

10Active
$79,500
2 bd · 2 ba · 1,056 sqft
310 E Philadelphia 28, Ontario, CA
Carlos Pacheco Aceves · eXp Realty of Southern California Inc
27Active
$149,999
4 bd · 2 ba · 1,152 sqft
310 Philadelphia East 108, Ontario, CA
Romualdo Nava-Ramirez · Abundance Real Estate
25Active
$105,000
3 bd · 2 ba · 1,176 sqft
1855 E Riverside 187, Ontario, CA
Gaus Geissler · Real Brokerage Technologies, Inc

Listing data & MLS disclosures

San Diego MLS: This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, noncommercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by San Diego MLS. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Copyright © 2026 San Diego MLS.

Ontario housing market

July 2026 · This period is still settling

Selling at 100.0% of asking price

Sales here are closing essentially at asking. MLS · 69 sales · as of Jul 20, 2026

Homes on the market · MLS, as of Jul 20, 2026–Jul 21, 2026

Median list price: $689,500
Homes for sale: 460
Median days on market: 29 days

Price trend · Assessor repeat sales, as of Jul 31, 2026

Year-over-year: -6.1%

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 15, 2026

Median home size: 1,536 sq. ft.

Ontario, CA community profile

Population: 179,053
Median income: $72,329
Housing units: 52,944
People per sq. mi.: 3,566.8
Area: 50.2 sq. mi.

Source: HJN community data

Explore Ontario homes

Listing data & MLS disclosures

San Diego MLS: This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, noncommercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by San Diego MLS. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Copyright © 2026 San Diego MLS.

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #01840925

Call Thomas

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #01840925

Call Thomas

Ontario, CA community profile

Population: 179,053
Median income: $72,329
Housing units: 52,944
People per sq. mi.: 3,566.8
Area: 50.2 sq. mi.

Source: HJN community data

Ontario housing market

July 2026 · This period is still settling

Selling at 100.0% of asking price

Sales here are closing essentially at asking. MLS · 69 sales · as of Jul 20, 2026

Homes on the market · MLS, as of Jul 20, 2026–Jul 21, 2026

Median list price: $689,500
Homes for sale: 460
Median days on market: 29 days

Price trend · Assessor repeat sales, as of Jul 31, 2026

Year-over-year: -6.1%

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 15, 2026

Median home size: 1,536 sq. ft.

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Your local brokerage

Listing data & MLS disclosures

Ontario housing market

Homes on the market · MLS, as of Jul 20, 2026–Jul 21, 2026

Price trend · Assessor repeat sales, as of Jul 31, 2026

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 15, 2026

Ontario, CA community profile

Explore Ontario homes

Listing data & MLS disclosures

Your local brokerage

Your local brokerage

Ontario, CA community profile

Ontario housing market

Homes on the market · MLS, as of Jul 20, 2026–Jul 21, 2026

Price trend · Assessor repeat sales, as of Jul 31, 2026

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 15, 2026