ZIP Code 94528 Map

ZIP Code 94528 Data

ZIP Code94528
ZIP Code NameDiablo
Primary CountyContra Costa County
ZIP Code TypePO Box
Population (2021)655
Area Code(s)925
Current Time

94528 Profile

94528 is a United States ZIP Code located in Diablo California. Portions of 94528 are also in Danville and Alamo. 94528 is entirely within Contra Costa County. 94528 is within the Metro Bay Area.

The majority race/ethnicity residing in 94528 is White. The current unemployment level in 94528 is 3.1%.

94528 Demographics

Population Growth Rate18.66%
Population Density798 People per Square Mile
Total Households350
Percentage High Income Households58.0%
Current Unemployment Rate (November 2023)3.1%
Majority Race/EthnictyWhite - 96.35%

94528 Race/Ethnicty Breakdown

Native American00%
Hawaiian/Pac. Islander00%

94528 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College00%
Bachelor Degree32142.52%
High School Diploma668.74%
No High School Diploma00%
GED or Alternate00%
1 or More Years of College648.48%
Associates Degree486.36%
Masters Degree16822.25%
Professional Degree486.36%
Doctorate Degree374.9%

94528 Geography

Adjacent ZIP Codes
Cities/Towns in 94528
RegionMetro Bay Area
Metropolitan/Micropolitan Stat AreaSan Francisco-Oakland-Berkeley, CA
Time ZonePacific Standard Time
IANA TimezoneAmerica/Los_Angeles
Area0.82107895 Square Miles

94528 Politics

US Congressional Districts in 94528
California State Senate Districts in 94528
California State Assembly Districts in 94528

94528 Schools

School Districts in 94528
Elementary Schools in 94528
Middle Schools in 94528
High Schools in 94528

94528 Climate Data

Plant Hardiness ZoneZone 9b: 25F to 30F
Average First Frost DateDecember 11 - 20
Average Last Frost DateMarch 11 - 20
Koppen-Geiger Climate ZoneCsb - Warm-Summer Mediterranean Climate

94528 Annual Climate Data

Avg Min Temp (°F)37404143485256565448423746
Avg Max Temp (°F)55596267738085858275625570
Avg Precip (In.)4.433.982.891.