ZIP Code 91784, California
ZIP Code 91784 profile, demographic data, and geographic information.
ZCTA5 91784 is a 5-digit ZIP Code area located in San Bernardino County, California. As of official census estimates, it has a reported population of 26,886. The land area covers 9.13 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 26,886 | ±1,450 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 46.6 yrs | ±1.3 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 8,993 | ±378 | 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 | 9,303 | ±376 |
| Occupied Housing Units | 8,993 | ±378 |
| Vacant Housing Units | 310 | ±171 |
| Median Home Value | $891,600 | ±$15,589 |
| Median Gross Rent | $2,945 | ±$215 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $154,349 | ±$5,298 |
| Per Capita Income | $60,591 | ±$3,248 |
| Poverty Rate | 6.5% | ±1.9% |
| Population Below Poverty Level | 1,744 | ±528 |
| Unemployment Rate | 5.5% | ±1.8% |
| Civilian Labor Force, Employed | 12,817 | ±859 |
| Broadband Internet Rate | 98.2% | ±5.8% |
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: 2,214,281 (2024)
ID: 161110
|
County | Official County Government |
Contact: CHAIRMAN
385 N ARROWHEAD AVE, FL 5, SAN BERNARDINO CA 92415-0110
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | KG-06 | Riverside, CA | |
| Special Education School Nearby | AE | San Dimas, CA | |
| Alternative School Nearby | 07-12 | La Verne, CA | |
| Regular School Nearby | KG-06 | Pomona, CA | |
| Regular School Nearby | 06-08 | Fontana, CA | |
| Regular School Nearby | KG-06 | Chino, CA | |
| Regular School Nearby | KG-08 | Chino, CA | |
| Regular School Nearby | KG-08 | Fontana, CA | |
| Regular School Nearby | KG-05 | San Dimas, CA | |
| Regular School Nearby | KG-06 | Pomona, 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 |
|---|---|---|---|---|
|
Salon Success Academy-Upland
|
College Vocational | 2.7 mi away | 1385 E. Foothill Blvd, Upland, CA, 91786 |
9099824200
|
|
UPLAND PUBLIC LIBRARY
|
Library | 2.9 mi away | 450 N. EUCLID AVE, UPLAND, CA, 91786 |
(909) 931-4200
|
|
Pitzer College
|
College | 3.9 mi away | 1050 North Mills Avenue, Claremont, CA, 91711-6101 |
9096218000
|
|
ARCHIBALD LIBRARY
|
Library | 3.8 mi away | 7368 ARCHIBALD AVENUE, RANCHO CUCAMONGA, CA, 91730 |
(909) 477-2720
|
|
Harvey Mudd College
|
College | 3.9 mi away | 301 Platt Blvd., Claremont, CA, 91711 |
9096218000
|
|
CLAREMONT HELEN RENWICK LIBRARY
|
Library | 4.7 mi away | 208 NORTH HARVARD AVE., CLAREMONT, CA, 91711 |
(909) 621-4902
|
|
Scripps College
|
College | 4.1 mi away | 1030 North Columbia Avenue, Claremont, CA, 91711 |
9096218000
|
|
MONTCLAIR BRANCH LIBRARY
|
Library | 5.2 mi away | 9955 FREMONT AVE., MONTCLAIR, CA, 91763 |
(909) 624-4671
|
|
Claremont McKenna College
|
College | 4.2 mi away | 500 E 9th St, Claremont, CA, 91711-6400 |
9096218000
|
|
OVITT FAMILY COMMUNITY LIBRARY
|
Library | 5.2 mi away | 215 EAST C STREET, ONTARIO, CA, 91764 |
(909) 395-2004
|
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 ONTARIO INTL AP, CA US, located 6.7 miles from ZCTA5 91784. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 67.7° | 44.6° | 56.1° | 2.57" | — |
| February | 68.1° | 46.2° | 57.1° | 3.07" | — |
| March | 71.7° | 48.7° | 60.2° | 1.64" | — |
| April | 75.7° | 51.1° | 63.4° | 0.76" | — |
| May | 79.8° | 55.6° | 67.7° | 0.30" | — |
| June | 86.4° | 60.0° | 73.2° | 0.02" | — |
| July | 93.8° | 64.7° | 79.2° | 0.05" | — |
| August | 94.9° | 65.2° | 80.1° | 0.03" | — |
| September | 91.3° | 63.8° | 77.6° | 0.10" | — |
| October | 82.6° | 57.1° | 69.8° | 0.41" | — |
| November | 74.7° | 49.0° | 61.9° | 0.80" | — |
| December | 66.9° | 43.6° | 55.2° | 1.89" | — |
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 |
|---|---|---|---|
| San Antonio Heights CDP | CDP | 1.1 mi | — |
| Upland city | City | 1.8 mi | — |
| Claremont city | City | 3.5 mi | — |
| Rancho Cucamonga city | City | 5.2 mi | — |
| Montclair city | City | 5.4 mi | — |
| La Verne city | City | 6.7 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 91784. • Official Source Dataset →
- 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.
- 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.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.