San Antonio Heights is a community in San Bernardino County, California, home to about 3,458 people across 2.5 square miles. It has no ZIP code of its own: it’s part of 91784.
Homes sold for a median of $435 per square foot in the three months ending August 2026, a seller’s market.
Mostly Upland; part is in San Antonio Heights
Each card is that ZIP code’s whole market, including any part outside San Antonio Heights. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up San Antonio Heights’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows San Antonio Heights well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Ontario International Airport (ONT)7 miles away |
|---|---|
| Nearest city of 250,000+ | Anaheim, CA21 miles away |
| Nearest city of 1 million+ | Los Angeles, CA44 miles away |
Straight-line distances from the center of San Antonio Heights; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
San Antonio Heights had 3,441 residents in the 2020 census, up 10% since 2000.
It’s the 750th largest of 1,563 towns in California by population.
San Bernardino County grew from 27,929 residents in 1900 to 2,181,654 in 2020.
San Bernardino County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 95°F in summer, and winter lows average 44°F. About 11.7 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Ontario Intl Ap, CA weather station (7 miles away).
718,612 jobs at 42,571 businesses in San Bernardino County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
73 doctors and other health care providers list an office in San Antonio Heights.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Specialist doctors | 3 |
| Dentists | 19 |
| Nurse practitioners and physician assistants | 12 |
| Mental health providers | 22 |
| Physical and occupational therapists | 11 |
| Optometrists | 2 |
| Chiropractors | 3 |
| Pharmacies | 4 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (2 nearby)
Grocery stores
Pharmacies
Libraries
Museums
Theaters and performance venues
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Upland Unified. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Pepper Tree ElementaryUpland | K–6 | 719 | Public | 0.9 mi |
| Valencia ElementaryUpland | K–6 | 571 | Public | 0.2 mi |
| Pioneer Junior HighUpland | 7–8 | 771 | Public | 0.8 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Upland.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.