ZIP Code 94551, California
ZIP Code 94551 profile, demographic data, and geographic information.
ZCTA5 94551 is a 5-digit ZIP Code area located in Alameda County / Contra Costa County, California. As of official census estimates, it has a reported population of 37,885. The land area covers 82.74 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 37,885 | ±1,553 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 39.7 yrs | ±1 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 14,052 | ±529 | 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 | 14,290 | ±553 |
| Occupied Housing Units | 14,052 | ±529 |
| Vacant Housing Units | 238 | ±149 |
| Median Home Value | $978,500 | ±$28,252 |
| Median Gross Rent | $2,696 | ±$151 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $145,392 | ±$5,842 |
| Per Capita Income | $64,072 | ±$3,379 |
| Poverty Rate | 4.8% | ±1.2% |
| Population Below Poverty Level | 1,802 | ±461 |
| Unemployment Rate | 4.2% | ±1.2% |
| Civilian Labor Force, Employed | 20,458 | ±1,069 |
| Broadband Internet Rate | 96.1% | ±1.1% |
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: 1,649,060 (2024)
ID: 123083
|
County | Official County Government |
Contact: ALAMEDA CO. BOARD OF SUPVRS 3RD DISTRICT
1221 OAK ST, STE 536, OAKLAND CA 94612-4224
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | 06-08 | Brentwood, CA | |
| Regular School Nearby | KG-05 | Pleasanton, CA | |
| Regular School Nearby | KG-05 | Livermore, CA | |
| Regular School Nearby | KG-08 | Mountain House, CA | |
| Regular School Nearby | 09-12 | Pleasanton, CA | |
| Regular School Nearby | 09-12 | Fremont, CA | |
| Regular School Nearby | 06-08 | Livermore, CA | |
| Regular School Nearby | KG-05 | Livermore, CA | |
| Regular School Nearby | KG-05 | Concord, CA | |
| Regular School Nearby | KG-05 | San Ramon, 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 |
|---|---|---|---|---|
|
Las Positas College
|
College | 3.9 mi away | 3000 Campus Hill Drive, Livermore, CA, 94551-7650 |
9254241000
|
|
SPRINGTOWN BRANCH LIBRARY
|
Library | 3.1 mi away | 998 BLUEBELL DR., LIVERMORE, CA, 94551 |
(925) 373-5517
|
|
J D Academy of Salon and Spa
|
College Vocational | 14.3 mi away | 520 San Ramon Valley Blvd, Danville, CA, 94526 |
9258555551
|
|
RINCON BRANCH LIBRARY
|
Library | 4.8 mi away | 725 RINCON AVE., LIVERMORE, CA, 94551 |
(925) 373-5540
|
|
Contra Costa Medical Career College
|
College | 15.9 mi away | 4041 Lone Tree Way Suite 101, Antioch, CA, 94581-6208 |
9257572900
|
|
CIVIC CENTER LIBRARY
|
Library | 5.3 mi away | 1188 S. LIVERMORE AVE., LIVERMORE, CA, 94550 |
(925) 373-5500
|
|
Ohlone College
|
College | 17.6 mi away | 43600 Mission Blvd, Fremont, CA, 94539-0390 |
5106596000
|
|
DOUGHERTY STATION LIBRARY
|
Library | 8.7 mi away | 17017 BOLLINGER CANYON RD., SAN RAMON, CA, 94582 |
(925) 973-3380
|
|
California State University-East Bay
|
College | 17.9 mi away | 25800 Carlos Bee Blvd, Hayward, CA, 94542 |
5108853000
|
|
PLEASANTON PUBLIC LIBRARY
|
Library | 9.6 mi away | 400 OLD BERNAL AVE., PLEASANTON, CA, 94566 |
(925) 931-3400
|
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 LIVERMORE, CA US, located 5.3 miles from ZCTA5 94551. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 56.8° | 39.0° | 47.9° | 2.78" | 0.0" |
| February | 61.0° | 41.0° | 51.0° | 2.72" | 0.0" |
| March | 65.8° | 43.3° | 54.6° | 2.20" | 0.0" |
| April | 70.6° | 45.7° | 58.1° | 1.10" | 0.0" |
| May | 76.6° | 50.0° | 63.3° | 0.51" | 0.0" |
| June | 83.9° | 53.8° | 68.8° | 0.12" | 0.0" |
| July | 89.0° | 56.6° | 72.8° | 0.00" | 0.0" |
| August | 88.6° | 56.6° | 72.6° | 0.04" | 0.0" |
| September | 85.9° | 54.7° | 70.3° | 0.09" | 0.0" |
| October | 77.2° | 49.7° | 63.5° | 0.77" | 0.0" |
| November | 64.9° | 42.8° | 53.8° | 1.54" | 0.0" |
| December | 56.9° | 38.8° | 47.9° | 2.73" | 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 |
|---|---|---|---|
| Livermore city | City | 4.4 mi | — |
| Camino Tassajara CDP | CDP | 7.9 mi | — |
| Dublin city | City | 8.4 mi | — |
| Pleasanton city | City | 9.2 mi | — |
| Blackhawk CDP | CDP | 9.9 mi | — |
| San Ramon city | City | 9.9 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 94551. • 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.