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ZIP Code 94528, California

ZIP Code 94528 profile, demographic data, and geographic information.

ZCTA5 94528 is a 5-digit ZIP Code area located in Contra Costa County, California. As of official census estimates, it has a reported population of 1,049. The land area covers 1.15 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 1,049 ±531 2020-2024 / Census ACS 5-Year 2024
Median Age 43 yrs ±18.1 2020-2024 / Census ACS 5-Year 2024
Total Households 424 ±159 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 463 ±162
Occupied Housing Units 424 ±159
Vacant Housing Units 39 ±70
Median Home Value $2,000,000+ —
Median Gross Rent Suppressed —
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $207,500 ±$151,231
Per Capita Income $127,901 ±$58,629
Poverty Rate 8.1% ±10.4%
Population Below Poverty Level 85 ±117
Unemployment Rate 7.1% ±8.8%
Civilian Labor Force, Employed 408 ±257
Broadband Internet Rate 100% ±0%
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: 1,172,607 (2024)
ID: 161097
County Official County Government
Contact: CHAIRMAN
651 PINE ST, RM 108A, MARTINEZ CA 94553-1229

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby KG-05 Oakland, CA
Regular School Nearby 09-12 Oakland, CA
Regular School Nearby KG-08 Oakland, CA
Alternative School Nearby 09-12 Walnut Creek, CA
Regular School Nearby 09-12 Lafayette, CA
Regular School Nearby KG-05 Oakland, CA
Regular School Nearby 06-08 Brentwood, CA
Alternative School Nearby KG-12 Hayward, CA
Alternative School Nearby KG-12 San Leandro, CA
Special Education School Nearby M Hayward, 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
J D Academy of Salon and Spa
College Vocational 2.6 mi away 520 San Ramon Valley Blvd, Danville, CA, 94526
9258555551
DANVILLE LIBRARY
Library 2.5 mi away 400 FRONT STREET, DANVILLE, CA, 94526
(925) 837-4889
Saint Mary's College of California
College 8.2 mi away 1928 Saint Marys Road, Moraga, CA, 94575
9256314000
SAN RAMON LIBRARY
Library 5.4 mi away 100 MONTGOMERY ST., SAN RAMON, CA, 94583
(925) 973-2850
Paul Mitchell the School-East Bay
College Vocational 9.1 mi away 100 Crescent Dr., Suite D, Pleasant Hill, CA, 94523
9256917687
YGNACIO VALLEY LIBRARY
Library 6.5 mi away 2661 OAK GROVE RD., WALNUT CREEK, CA, 94598
(925) 938-1481
Mt. Diablo Adult Education-Mt. Diablo USD
College Vocational 9.6 mi away Loma Vista Adult Center - 1266 San Carlos Avenue., Concord, CA, 94518-1199
9256857340
DOUGHERTY STATION LIBRARY
Library 6.6 mi away 17017 BOLLINGER CANYON RD., SAN RAMON, CA, 94582
(925) 973-3380
Urban Barber College
College Vocational 10.2 mi away 1809 Willow Pass Rd, Concord, CA, 94520-2522
9256710121
WALNUT CREEK LIBRARY
Library 7.0 mi away 1644 N. BROADWAY, WALNUT CREEK, CA, 94596
(925) 977-3340
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 MT DIABLO JUNCTION, CA US, located 3.0 miles from ZCTA5 94528. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 53.7° 41.7° 47.7° 5.06" 0.1"
February 54.6° 41.7° 48.2° 4.90" 0.5"
March 57.9° 42.9° 50.4° 3.69" 0.1"
April 62.0° 44.4° 53.2° 1.92" 0.0"
May 67.8° 49.3° 58.6° 1.13" 0.0"
June 75.9° 55.4° 65.6° 0.27" 0.0"
July 82.5° 61.5° 72.0° 0.01" 0.0"
August 82.8° 61.0° 71.9° 0.03" 0.0"
September 80.0° 59.7° 69.9° 0.12" 0.0"
October 71.7° 54.0° 62.9° 1.19" 0.0"
November 60.4° 46.2° 53.3° 2.65" 0.0"
December 53.4° 41.3° 47.4° 5.08" 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
Diablo CDP CDP 0.1 mi —
Danville town Town 2.1 mi —
Alamo CDP CDP 3.2 mi —
Blackhawk CDP CDP 3.3 mi —
North Gate CDP CDP 4.9 mi —
Camino Tassajara CDP CDP 5.3 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 94528. • 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.