Walnut Creek, CA Demographics & ZIP Codes
Walnut Creek, California demographics and median household income by ZIP code (in Contra Costa County) — 4 ZIP codes — population 91,171 — median income $141,656 — avg. home value $1,088,850. Compare income, housing, and population across ZIP codes on US5.
Walnut Creek demographics
Walnut Creek, California covers 4 ZIP codes primarily in Contra Costa County, with a combined ZIP-area population of about 91,171.
Across ZIP codes with age data, the average median age is about 47.2 years.
Median household income in Walnut Creek
The average median household income across ZIP codes in Walnut Creek, California is about $141,656 — about 44% above the CA ZIP average ($98,324), and about 89% above the U.S. median ($75,149).
Among ZIPs with income data, 94598 is near the top at about $188,170, while 94595 is near the bottom at about $98,108.
Housing in Walnut Creek
For housing in Walnut Creek, California, the average median home value is about $1,088,850 and the average median rent is about $2,506.
The most populous ZIP in this set is 94598 (about 26,293 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Walnut Creek
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 94598 | Walnut Creek | Contra Costa County | CA | 26,293 | $188,170 | $1,307,100 |
| 94597 | Walnut Creek | Contra Costa County | CA | 24,235 | $142,685 | $986,700 |
| 94596 | Walnut Creek | Contra Costa County | CA | 23,592 | $137,660 | $1,245,000 |
| 94595 | Walnut Creek | Contra Costa County | CA | 17,051 | $98,108 | $816,600 |
Frequently asked questions
What are the demographics of Walnut Creek?
Walnut Creek, California has a combined ZIP-area population of about 91,171 across 4 ZIP codes (primarily Contra Costa County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Walnut Creek?
The average median household income across ZIP codes in Walnut Creek, California is about $141,656, about 44% above the state ZIP average ($98,324), and about 89% above the U.S. median ($75,149). Average median home value is about $1,088,850. Among ZIPs with data, 94598 is near the top ($188,170) and 94595 is near the bottom ($98,108).
How many ZIP codes are in Walnut Creek?
Walnut Creek, California includes 4 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Walnut Creek?
This page lists ZIP codes in Walnut Creek, California with population, median household income, and home value. Select a ZIP for a full demographics profile.