Home > CA > San Bernardino County > Rancho Cucamonga > Zip 91701

Zip Code 91701 — Rancho Cucamonga, CA

91701 is a ZIP Code associated with Rancho Cucamonga, CA, located within San Bernardino. 91701 ranks #25 out of 91 ZIP codes in San Bernardino County by population (and #393 out of 1,802 in CA). The area supports an estimated population of 39,287 residents across Data Pending housing units, with a population density of 2,052.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (34.137840, -117.600280)

Data MetricLocal Statistic
Postal / Zip Code91701
Primary CityRancho Cucamonga
State / ProvinceCA
CountySan Bernardino
Total Population39,287
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density2,052.1 people/sq mi
TimezoneAmerica/Los_Angeles

How 91701 Compares

MetricZIP 91701San Bernardino CountyCA State Average
Population39,2872,188,912 (Total)39,286,245 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density2,052.1 /sq mi----
County Pop Rank#25 of 91----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 91737Rancho Cucamonga1.7 mi22,958N/A
Zip 91730Rancho Cucamonga2.8 mi71,613N/A
Zip 91784Upland3.3 mi26,886N/A
Zip 91786Upland4.2 mi55,829N/A
Zip 91764Ontario4.3 mi56,270N/A

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 →