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ZIP Code 91104, California

ZIP Code 91104 profile, demographic data, and geographic information.

ZCTA5 91104 is a 5-digit ZIP Code area located in Los Angeles County, California. As of official census estimates, it has a reported population of 35,937. The land area covers 3.77 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 35,937 ±1,963 2020-2024 / Census ACS 5-Year 2024
Median Age 41.7 yrs ±1.5 2020-2024 / Census ACS 5-Year 2024
Total Households 13,488 ±642 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 14,498 ±581
Occupied Housing Units 13,488 ±642
Vacant Housing Units 1,010 ±274
Median Home Value $1,080,100 ±$30,099
Median Gross Rent $2,063 ±$105
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $105,958 ±$7,363
Per Capita Income $53,241 ±$3,409
Poverty Rate 12.6% ±3.1%
Population Below Poverty Level 4,490 ±1,122
Unemployment Rate 4.8% ±1.3%
Civilian Labor Force, Employed 18,537 ±1,067
Broadband Internet Rate 93.4% ±1.6%
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 La Crescenta, CA
Regular School Nearby 09-12 Los Angeles, CA
Regular School Nearby 06-12 Highland Park, CA
Regular School Nearby KG-05 Walnut Park, CA
Regular School Nearby KG-08 Los Angeles, CA
Regular School Nearby KG-06 Los Angeles, CA
Regular School Nearby KG-06 Whittier, CA
Regular School Nearby KG-06 Whittier, CA
Regular School Nearby KG-06 Los Angeles, CA
Regular School Nearby KG-05 Los Angeles, 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
California Institute of Advanced Management
College 5.9 mi away 1000 S. Fremont Ave. Mailbox #45, Bldg A10, 4th Floor, Suite 10402, Alhambra, CA, 91803
6263501500
EL SERENO BRANCH
Library 5.8 mi away 5226 HUNTINGTON DR. SOUTH, LOS ANGELES, CA, 90032
(323) 225-9201
Platt College-Los Angeles
College 6.0 mi away 1000 South Fremont Avenue, A9W, Alhambra, CA, 91803
6263005444
ROSEMEAD LIBRARY
Library 6.4 mi away 8800 VALLEY BLVD., ROSEMEAD, CA, 91770
(626) 573-5220
Alhambra Medical University
College 6.1 mi away 2215 W. Mission Road, Alhambra, CA, 91803
6262897719
MONTEREY PARK BRUGGEMEYER LIBRARY
Library 7.3 mi away 318 S. RAMONA AVENUE, MONTEREY PARK, CA, 91754
(626) 307-1418
Palladium Technical Academy Inc
College Vocational 6.8 mi away 10229 Lower Azusa Rd., Temple City, CA, 91780
6264440880
LINCOLN HEIGHTS BRANCH
Library 8.1 mi away 2530 WORKMAN ST., LOS ANGELES, CA, 90031
(323) 226-1692
California State University-Los Angeles
College 7.3 mi away 5151 State University Dr, Los Angeles, CA, 90032-8506
3233433000
CITY TERRACE LIBRARY
Library 8.2 mi away 4025 EAST CITY TERRACE DR., LOS ANGELES, CA, 90063
(323) 261-0295
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 PASADENA, CA US, located 1.7 miles from ZCTA5 91104. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 68.1° 45.5° 56.8° 4.51" 0.0"
February 69.3° 46.1° 57.7° 5.16" 0.0"
March 72.6° 48.4° 60.5° 3.03" 0.0"
April 76.2° 50.6° 63.4° 1.11" 0.0"
May 78.3° 53.9° 66.1° 0.48" 0.0"
June 83.7° 57.8° 70.7° 0.21" 0.0"
July 89.1° 62.0° 75.6° 0.06" 0.0"
August 91.3° 63.2° 77.2° 0.03" 0.0"
September 89.9° 61.6° 75.8° 0.22" 0.0"
October 83.0° 56.3° 69.7° 0.84" 0.0"
November 74.7° 49.6° 62.1° 1.10" 0.0"
December 67.2° 44.7° 56.0° 3.33" 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
Pasadena city City 0.9 mi —
Altadena CDP CDP 2.0 mi —
San Pasqual CDP CDP 2.2 mi —
San Marino city City 3.0 mi —
East Pasadena CDP CDP 3.3 mi —
East San Gabriel CDP CDP 4.2 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 91104. • 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.