ZIP codes
43
Contra Costa County, CA Demographics & ZIP Codes
Contra Costa County, California demographics and median household income by ZIP code — 43 ZIP codes — population 1,167,715 — avg. income $143,285 — avg. home value $1,000,512. Compare income, housing, and ZIP-level data on US5.
Population
1,167,715
Median household income (avg.)
$143,285
191% of U.S. median
Average home value
$1,000,512
287% of U.S. median
Average rent
$2,329
200% of U.S. median
Contra Costa County demographics
Contra Costa County, California covers 43 ZIP codes, with a combined ZIP-area population of about 1,167,715.
Median household income in Contra Costa County
The average median household income across ZIP codes in Contra Costa County, California is about $143,285 — about 46% above the CA ZIP average ($98,324), and about 91% above the U.S. median ($75,149).
Among ZIPs with income data, 94506 (Blackhawk) is near the top at about $250,001, while 94801 (Richmond) is near the bottom at about $75,786.
Housing in Contra Costa County
For housing in Contra Costa County, California, the average median home value is about $1,000,512 and the average median rent is about $2,329.
The most populous ZIP is 94565 (Pittsburg) with about 99,933 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Contra Costa County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 94565 | Pittsburg | Contra Costa County | CA | 99,933 | $95,035 | $563,300 |
| 94509 | Antioch | Contra Costa County | CA | 71,013 | $81,512 | $565,300 |
| 94513 | Brentwood | Contra Costa County | CA | 68,160 | $139,736 | $793,900 |
| 94806 | Richmond | Contra Costa County | CA | 61,749 | $82,818 | $582,000 |
| 94553 | Martinez | Contra Costa County | CA | 48,600 | $121,023 | $781,400 |
| 94582 | San Ramon | Contra Costa County | CA | 47,182 | $211,159 | $1,543,800 |
| 94561 | Oakley | Contra Costa County | CA | 45,386 | $130,859 | $632,100 |
| 94531 | Antioch | Contra Costa County | CA | 44,746 | $123,428 | $660,200 |
| 94804 | Richmond | Contra Costa County | CA | 44,679 | $86,430 | $618,000 |
| 94521 | Concord | Contra Costa County | CA | 41,118 | $127,312 | $823,100 |
| 94583 | San Ramon | Contra Costa County | CA | 39,418 | $184,033 | $1,234,400 |
| 94520 | Concord | Contra Costa County | CA | 36,767 | $79,790 | $572,400 |
| 94523 | Pleasant Hill | Contra Costa County | CA | 34,789 | $142,622 | $1,038,400 |
| 94801 | Richmond | Contra Costa County | CA | 33,564 | $75,786 | $593,500 |
| 94526 | Danville | Contra Costa County | CA | 33,085 | $216,974 | $1,588,000 |
| 94549 | Lafayette | Contra Costa County | CA | 28,247 | $231,195 | $1,968,500 |
| 94518 | Concord | Contra Costa County | CA | 27,743 | $111,406 | $826,500 |
| 94803 | Richmond | Contra Costa County | CA | 27,588 | $116,075 | $729,000 |
| 94506 | Blackhawk | Contra Costa County | CA | 27,261 | $250,001 | $1,789,600 |
| 94598 | Walnut Creek | Contra Costa County | CA | 26,293 | $188,170 | $1,307,100 |
| 94547 | Hercules | Contra Costa County | CA | 26,245 | $130,583 | $741,200 |
| 94530 | El Cerrito | Contra Costa County | CA | 26,229 | $127,731 | $1,097,300 |
| 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 |
| 94519 | Concord | Contra Costa County | CA | 19,918 | $123,366 | $727,600 |
| 94563 | Orinda | Contra Costa County | CA | 19,409 | $250,001 | $1,810,100 |
| 94564 | Pinole | Contra Costa County | CA | 18,835 | $120,833 | $697,100 |
| 94595 | Walnut Creek | Contra Costa County | CA | 17,051 | $98,108 | $816,600 |
| 94556 | Moraga | Contra Costa County | CA | 15,922 | $199,300 | $1,594,100 |
| 94805 | Richmond | Contra Costa County | CA | 15,356 | $114,191 | $738,800 |
| 94505 | Discovery Bay | Contra Costa County | CA | 15,316 | $154,063 | $787,500 |
| 94507 | Alamo | Contra Costa County | CA | 14,546 | $250,001 | $2,000,001 |
| 94517 | Clayton | Contra Costa County | CA | 12,164 | $164,860 | $995,600 |
| 94708 | Berkeley | Contra Costa County | CA | 11,967 | $229,004 | $1,517,100 |
| 94572 | Rodeo | Contra Costa County | CA | 8,712 | $89,074 | $653,500 |
| 94525 | Crockett | Contra Costa County | CA | 3,665 | $101,850 | $709,000 |
| 94511 | Bethel Island | Contra Costa County | CA | 2,144 | $78,393 | $549,500 |
| 94514 | Byron | Contra Costa County | CA | 2,044 | $97,946 | $852,900 |
| 94575 | Moraga | Contra Costa County | CA | 1,005 | — | — |
| 94528 | Diablo | Contra Costa County | CA | 1,000 | — | $2,000,001 |
| 94548 | Knightsen | Contra Costa County | CA | 637 | $183,100 | $918,100 |
| 94516 | — | Contra Costa County | CA | 208 | — | $786,800 |
| 94569 | Port Costa | Contra Costa County | CA | 194 | — | $586,500 |
Frequently asked questions
What are the demographics of Contra Costa County?
Contra Costa County, California has a combined ZIP-area population of about 1,167,715 across 43 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Contra Costa County?
The average median household income across ZIP codes in Contra Costa County, California is about $143,285, about 46% above the state ZIP average ($98,324), and about 91% above the U.S. median ($75,149). Average median home value is about $1,000,512. Among ZIPs with data, 94506 (Blackhawk) is near the top ($250,001) and 94801 (Richmond) is near the bottom ($75,786).
How many ZIP codes are in Contra Costa County?
Contra Costa County, California includes 43 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Contra Costa County?
This page lists ZIP codes in Contra Costa County, California with population, median household income, and home value. Select a ZIP for a full demographics profile.