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ZIP Code 91765, California

ZIP Code 91765 profile, demographic data, and geographic information.

ZCTA5 91765 is a 5-digit ZIP Code area located in Los Angeles County, California. As of official census estimates, it has a reported population of 44,502. The land area covers 18.57 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 44,502 ±921 2020-2024 / Census ACS 5-Year 2024
Median Age 46 yrs ±1.3 2020-2024 / Census ACS 5-Year 2024
Total Households 15,233 ±527 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 16,078 ±515
Occupied Housing Units 15,233 ±527
Vacant Housing Units 845 ±240
Median Home Value $915,100 ±$18,203
Median Gross Rent $2,486 ±$120
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $105,565 ±$9,879
Per Capita Income $48,949 ±$2,940
Poverty Rate 10.7% ±2.6%
Population Below Poverty Level 4,766 ±1,143
Unemployment Rate 5% ±1.1%
Civilian Labor Force, Employed 21,615 ±977
Broadband Internet Rate 95.7% ±1.5%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
GUS Population: 9,757,179 (2024)
ID: 123085
County Official County Government
Contact: EXECUTIVE OFFICER BOARD OF SUPERVISORS
500 W TEMPLE ST, ROOM 383, LOS ANGELES CA 90012

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby KG-06 Cypress, CA
Alternative School Nearby 07-12 Cerritos, CA
Alternative School Nearby KG-12 Costa Mesa, CA
Regular School Nearby KG-06 Fullerton, CA
Alternative School Nearby KG-12 Corona, CA
Special Education School Nearby AE San Dimas, CA
Regular School Nearby KG-06 Whittier, CA
Alternative School Nearby 07-12 La Verne, CA
Regular School Nearby KG-06 Garden Grove, CA
Regular School Nearby 07-08 Garden Grove, CA
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
Mt San Antonio College
College 4.8 mi away 1100 N Grand Ave, Walnut, CA, 91789-1399
9092745505
DIAMOND BAR LIBRARY
Library 1.5 mi away 21800 COPLEY DR., DIAMOND BAR, CA, 91765
(909) 861-4978
California State Polytechnic University-Pomona
College 5.1 mi away 3801 W Temple Avenue, Pomona, CA, 91768
9098697659
WALNUT LIBRARY
Library 3.3 mi away 21155 LA PUENTE RD., WALNUT, CA, 91789
(909) 595-0757
Western University of Health Sciences
College 6.2 mi away 309 E 2nd St, Pomona, CA, 91766-1854
9096236116
ROWLAND HEIGHTS LIBRARY
Library 4.4 mi away 1850 NOGALES ST., ROWLAND HEIGHTS, CA, 91748
(626) 912-5348
North-West College-Pomona
College Vocational 6.4 mi away 170 W Holt Ave, Pomona, CA, 91768
9096231552
CHINO HILLS
Library 4.8 mi away 14020 CITY CENTER DRIVE, CHINO HILLS, CA, 91709
(909) 590-5380
Pomona Unified School District Adult and Career Education
College Vocational 7.5 mi away 1444 E. Holt Avenue Suite 100, Pomona, CA, 91767
909469233324301
POMONA PUBLIC LIBRARY
Library 5.9 mi away 625 S. GAREY AVE., POMONA, CA, 91766
(909) 620-2473
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at POMONA/FAIRPLEX, CA US, located 7.2 miles from ZCTA5 91765. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 67.9° 43.1° 55.5° 2.91" 0.0"
February 67.3° 44.5° 55.9° 4.15" 0.0"
March 72.0° 47.0° 59.5° 2.12" 0.0"
April 75.8° 49.6° 62.7° 0.97" 0.0"
May 78.4° 54.0° 66.2° 0.22" 0.0"
June 84.3° 57.2° 70.8° 0.06" 0.0"
July 90.3° 62.3° 76.3° 0.00" 0.0"
August 92.4° 62.7° 77.5° 0.03" 0.0"
September 88.7° 60.4° 74.6° 0.01" 0.0"
October 80.5° 53.9° 67.2° 0.97" 0.0"
November 73.5° 47.0° 60.2° 0.74" 0.0"
December 66.9° 41.5° 54.2° 2.29" 0.0"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
Diamond Bar city City 1.2 mi —
Walnut city City 4.4 mi —
Rowland Heights CDP CDP 4.6 mi —
Brea city City 5.1 mi —
South San Jose Hills CDP CDP 5.6 mi —
Chino Hills city City 5.7 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 91765. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.