Home > CA > San Bernardino County > Ontario > Zip 91764

Zip Code 91764 — Ontario, CA

ZIP Code 91764 is associated with Ontario, CA, in San Bernardino County. The listed population estimate is 56,270; estimated density is 2,747.8 people per square mile. Among records with population estimates, it ranks #14 of 85 in San Bernardino County and #156 of 1,762 in CA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (34.075330, -117.601640)

Data MetricLocal Statistic
Postal / Zip Code91764
Primary CityOntario
State / ProvinceCA
CountySan Bernardino
Total Population56,270
Population Density2,747.8 people/sq mi
TimezoneAmerica/Los_Angeles

How 91764 Compares

MetricZIP 91764San Bernardino County recordsCA records
Population estimate56,2702,188,912 (sum)39,286,245 (sum)
Population Density2,747.8 /sq mi----
County population rank#14 of 85----
State population rank#156 of 1,762----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in CA

ZIP CodeCityDistancePopulation estimate
ZIP 91730Rancho Cucamonga2.1 mi71,613
ZIP 91761Ontario2.8 mi62,935
ZIP 91786Upland4.0 mi55,829
ZIP 91762Ontario4.1 mi64,235
ZIP 91701Rancho Cucamonga4.3 mi39,287

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →