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ZIP Code 90621, California

ZIP Code 90621 profile, demographic data, and geographic information.

ZCTA5 90621 is a 5-digit ZIP Code area located in Orange County, California. As of official census estimates, it has a reported population of 35,984. The land area covers 4.19 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 35,984 ±1,872 2020-2024 / Census ACS 5-Year 2024
Median Age 36.2 yrs ±2 2020-2024 / Census ACS 5-Year 2024
Total Households 10,977 ±574 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 11,240 ±575
Occupied Housing Units 10,977 ±574
Vacant Housing Units 263 ±148
Median Home Value $832,000 ±$40,158
Median Gross Rent $2,167 ±$63
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $97,612 ±$9,573
Per Capita Income $37,724 ±$2,302
Poverty Rate 10.1% ±2.2%
Population Below Poverty Level 3,583 ±790
Unemployment Rate 6.6% ±1.7%
Civilian Labor Force, Employed 18,803 ±1,259
Broadband Internet Rate 95.2% ±1.9%
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: 3,170,435 (2024)
ID: 207576
County Official County Government
Contact: MANAGER, SPECIAL PROJECTS
331 W SANTA ANA BLVD, SANTA ANA CA 92701

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
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
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
American Career College-Anaheim
College 2.0 mi away 1200 N. Magnolia Ave., Anaheim, CA, 92801-0000
9497834800
BUENA PARK LIBRARY DISTRICT
Library 2.1 mi away 7150 LA PALMA AVE., BUENA PARK, CA, 90620
(714) 826-4100
Grace Mission University
College 2.1 mi away 1645 West Valencia Dr, Fullerton, CA, 92833-3860
7145250088
HUNT BRANCH
Library 2.3 mi away 201 S. BASQUE AVE., FULLERTON, CA, 92833
(714) 738-3121
Biola University
College 2.5 mi away 13800 Biola Ave, La Mirada, CA, 90639-0001
5629036000
LA MIRADA LIBRARY
Library 2.4 mi away 13800 LA MIRADA BLVD., LA MIRADA, CA, 90638
(562) 943-0277
South Baylo University
College 2.7 mi away 1126 N Brookhurst St, Anaheim, CA, 92801-1701
7145331495
LA PALMA BRANCH LIBRARY
Library 3.1 mi away 7842 WALKER ST., LA PALMA, CA, 90623
(714) 523-8585
North-West College-Anaheim
College 3.1 mi away 511 N. Brookhurst Street, Anaheim, CA, 92801
7147952800
HASKETT BRANCH
Library 3.3 mi away 2650 W. BROADWAY, ANAHEIM, CA, 92804
(714) 765-5075
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 0.8 miles from ZCTA5 90621. 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
Buena Park city City 1.4 mi —
La Mirada city City 2.1 mi —
La Palma city City 3.1 mi —
East Whittier CDP CDP 3.5 mi —
Fullerton city City 3.8 mi —
Cerritos city City 4.4 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 90621. • 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.