94598   Zip Code Walnut Creek Contra Costa CA United States

City Walnut Creek
County Contra Costa
State California
Latitude 37.89238
Longitude -121.98283
Population 27,206
Density 1320.21 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: $186,225
Median individual: $82,526

Race

Mode: 66.4% White

Gender

 50.8% female 

Rent

  $2940 / month  

Median house value: $1,345,062.0

Age

Median: 45.9 years old

Education

With at least college degree: 73.7%
With STEM degree: 51.7%

Marital Status

 64.5% married 

Never married: 21.9%

Labor Force Participation

 60.0% working 

Unemployed: 4.7%

Average Family Size

 2.91 people 

Commute Time

 29.2 minutes 

Health Care

 1.3% uninsured 

Poverty

 5.4%

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

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