94528   Zip Code Diablo Contra Costa CA United States

City Diablo
County Contra Costa
State California
Latitude 37.84149
Longitude -121.95819
Population 1,049
Density 909.33 people per square mile
Time Zone America/Los Angeles
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $207,500
Median individual: $64,875

Race

Mode: 81.8% White

Gender

 56.8% female 

Rent

No data available.

Age

Median: 43.0 years old

Education

With at least college degree: 79.8%
With STEM degree: 73.0%

Marital Status

 71.8% married 

Never married: 14.9%

Labor Force Participation

 52.1% working 

Unemployed: 7.1%

Average Family Size

 2.85 people 

Commute Time

 41.8 minutes 

Health Care

 3.9% uninsured 

Poverty

 8.1%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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