Zip Code 91748 — Rowland Heights, CA

ZIP Code 91748 is associated with Rowland Heights, CA, in Los Angeles County. The listed population estimate is 42,463; estimated density is 1,156.6 people per square mile. Among records with population estimates, it ranks #83 of 288 in Los Angeles County and #340 of 1,762 in CA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (33.976900, -117.899240)

Data MetricLocal Statistic
Postal / Zip Code91748
Primary CityRowland Heights
State / ProvinceCA
CountyLos Angeles
Total Population42,463
Population Density1,156.6 people/sq mi
TimezoneAmerica/Los_Angeles

How 91748 Compares

MetricZIP 91748Los Angeles County recordsCA records
Population estimate42,4639,807,501 (sum)39,286,245 (sum)
Population Density1,156.6 /sq mi----
County population rank#83 of 288----
State population rank#340 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 91792West Covina3.4 mi30,629
ZIP 92821Brea3.7 mi41,623
ZIP 90631La Habra3.8 mi68,309
ZIP 91789Walnut3.9 mi40,298
ZIP 91744La Puente4.2 mi76,942

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 →