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ZIP Code 90631, California

ZIP Code 90631 profile, demographic data, and geographic information.

ZCTA5 90631 is a 5-digit ZIP Code area located in Los Angeles County / Orange County, California. As of official census estimates, it has a reported population of 68,309. The land area covers 13.98 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 68,309 ±360 2020-2024 / Census ACS 5-Year 2024
Median Age 39.2 yrs ±1.1 2020-2024 / Census ACS 5-Year 2024
Total Households 22,730 ±577 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 23,520 ±566
Occupied Housing Units 22,730 ±577
Vacant Housing Units 790 ±232
Median Home Value $818,500 ±$16,835
Median Gross Rent $2,121 ±$54
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $104,251 ±$4,332
Per Capita Income $46,885 ±$2,115
Poverty Rate 10.3% ±1.6%
Population Below Poverty Level 7,006 ±1,057
Unemployment Rate 6.8% ±1.3%
Civilian Labor Force, Employed 34,266 ±1,011
Broadband Internet Rate 93.9% ±0.6%
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
Regular School Nearby KG-06 Garden Grove, CA
Alternative School Nearby 07-12 Cerritos, CA
Alternative School Nearby KG-08 Cerritos, CA
Alternative School Nearby KG-12 Costa Mesa, CA
Regular School Nearby KG-05 Paramount, CA
Regular School Nearby KG-05 Santa Ana, CA
Regular School Nearby 09-12 Los Angeles, CA
Regular School Nearby KG-06 Fullerton, CA
Regular School Nearby 06-12 Highland Park, 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
Southern California University of Health Sciences
College 2.2 mi away 16200 East Amber Valley Drive, Whittier, CA, 90604
5629478755
LA HABRA BRANCH LIBRARY
Library 0.9 mi away 221 E. LA HABRA BLVD., LA HABRA, CA, 90631
(562) 694-0078
ATI College-Whittier
College 3.0 mi away 15141 Whittier Blvd Suite 420, Whitter, CA, 90603-0000
5628640506
WHITTWOOD BRANCH LIBRARY
Library 2.3 mi away 10537 SANTA GERTRUDES AVE., WHITTIER, CA, 90603
(562) 567-9950
Biola University
College 4.4 mi away 13800 Biola Ave, La Mirada, CA, 90639-0001
5629036000
HACIENDA HEIGHTS LIBRARY
Library 3.6 mi away 16010 LA MONDE ST., HACIENDA HEIGHTS, CA, 91745
(626) 968-9356
Fullerton College
College 5.0 mi away 321 E Chapman Avenue, Fullerton, CA, 92832-2095
7149927000
BREA BRANCH LIBRARY
Library 4.0 mi away 1 CIVIC CENTER CIRCLE, BREA, CA, 92821
(714) 671-1722
Grace Mission University
College 5.2 mi away 1645 West Valencia Dr, Fullerton, CA, 92833-3860
7145250088
LA MIRADA LIBRARY
Library 4.3 mi away 13800 LA MIRADA BLVD., LA MIRADA, CA, 90638
(562) 943-0277
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 FULLERTON MUNI AP, CA US, located 5.1 miles from ZCTA5 90631. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 68.8° 46.4° 57.6° 2.85" —
February 69.0° 48.3° 58.6° 3.02" —
March 71.0° 51.5° 61.2° 1.74" —
April 74.2° 53.8° 64.0° 0.59" —
May 75.7° 58.1° 66.9° 0.30" —
June 79.0° 62.6° 70.8° 0.08" —
July 84.4° 66.1° 75.2° 0.02" —
August 86.7° 66.4° 76.5° 0.02" —
September 85.4° 64.6° 75.0° 0.14" —
October 80.3° 58.3° 69.3° 0.50" —
November 74.0° 50.7° 62.4° 0.74" —
December 68.1° 45.6° 56.9° 1.86" —
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
La Habra city City 1.0 mi —
La Habra Heights city City 1.1 mi —
East Whittier CDP CDP 2.4 mi —
Hacienda Heights CDP CDP 3.9 mi —
Rowland Heights CDP CDP 4.0 mi —
Fullerton city City 4.2 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 90631. • 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.