Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 40.6 yrs |
|---|---|
| Avg HH Size | 2.74 |
| Below Poverty | 8.2% ▼ 18% below avg |
| College Grads | 53.9% ▲ 39% above avg |
| Unemployment | 5.9% ▲ 21% above avg |
| No HS Diploma | 19,162 (2.6%) |
| HS Graduate | 146,735 (19.7%) |
| Some College | 64,687 (8.7%) |
| Associates | 106,467 (14.3%) |
| Bachelors | 65,023 (8.7%) |
| Graduate Degree | 343,002 (46%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $134,469 ▲ 76% above avg |
|---|---|
| Median Home Value | $917,378 ▲ 229% above avg |
| Home/Income Ratio | 6.8x (nat avg ~3.5x) |
| Median Rent | $2,470/mo |
| Total Housing Units | 424,191 |
| Vacant Units | 14,809 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Contra Costa County is located in California and encompasses 52 ZIP codes spanning 30 cities and communities. The county has an estimated population of 1,155,748 residents. With a median age of 40.61, it is a middle-aged county.
Contra Costa County has a upper-middle-income economic profile. The median household income of $134,469 is significantly above the national average. Unemployment stands at 5.9%, above the national average. The poverty rate of 8.2% is near the national average.
Housing in Contra Costa County is among the most expensive housing markets in the country, with a median home value of $917,378 — more than double the national average. Monthly median rent is approximately $2,470. Homeownership rates are high at 67.6%, reflecting a largely residential, stable population.
The residents of Contra Costa County are racially diverse, with White as the largest group at 39.1%. Educational attainment is well-educated — 53.9% of adults hold a bachelor's degree or higher, above the national average.
Contra Costa County, CA is a upper-middle-income area in California. The 52 ZIP codes within the county each have their own character — browse the full list below to find the right community, whether you're looking for affordable housing, strong schools, or economic opportunity.
| ZIP | City | Population | Median Income | Median Home | Median Rent | Unemp. | College |
|---|---|---|---|---|---|---|---|
| 94507 | Alamo | 14,546 | $250,001 | $2,000,000+ | $3,501 | 3.3% | 81.9% |
| 94509 | Antioch | 71,013 | $81,512 | $565,300 | $2,052 | 8.1% | 29.3% |
| 94531 | Antioch | 44,746 | $123,428 | $660,200 | $3,063 | 5.7% | 44.0% |
| 94511 | Bethel Island | 2,144 | $78,393 | $549,500 | $1,390 | 31.1% | 30.1% |
| 94513 | Brentwood | 68,160 | $139,736 | $793,900 | $2,449 | 6.1% | 49.0% |
| 94514 | Byron | 2,044 | $97,946 | $852,900 | $2,496 | 14.5% | 35.6% |
| 94517 | Clayton | 12,164 | $164,860 | $995,600 | $3,501 | 6.8% | 67.2% |
| 94518 | Concord | 27,743 | $111,406 | $826,500 | $2,290 | 4.9% | 57.1% |
| 94519 | Concord | 19,918 | $123,366 | $727,600 | $2,340 | 3.1% | 39.9% |
| 94520 | Concord | 36,767 | $79,790 | $572,400 | $2,118 | 5.0% | 42.1% |
| 94521 | Concord | 41,118 | $127,312 | $823,100 | $2,388 | 5.6% | 55.6% |
| 94525 | Crockett | 3,665 | $101,850 | $709,000 | $2,186 | 5.6% | 46.4% |
| 94506 | Danville | 27,261 | $250,001 | $1,789,600 | $3,501 | 3.8% | 78.6% |
| 94526 | Danville | 33,085 | $216,974 | $1,588,000 | $3,501 | 5.0% | 75.9% |
| 94505 | Discovery Bay | 15,316 | $154,063 | $787,500 | $2,894 | 8.1% | 46.8% |
| 94530 | El Cerrito | 26,229 | $127,731 | $1,097,300 | $2,434 | 5.3% | 70.8% |
| 94803 | El Sobrante | 27,588 | $116,075 | $729,000 | $2,295 | 5.4% | 51.1% |
| 94547 | Hercules | 26,245 | $130,583 | $741,200 | $3,003 | 4.7% | 58.4% |
| 94548 | Knightsen | 637 | $183,100 | $918,100 | — | 0.0% | 45.4% |
| 94549 | Lafayette | 28,247 | $231,195 | $1,968,500 | $2,902 | 5.1% | 82.6% |
| 94553 | Martinez | 48,600 | $121,023 | $781,400 | $2,247 | 5.2% | 52.9% |
| 94556 | Moraga | 15,922 | $199,300 | $1,594,100 | $3,119 | 5.7% | 85.8% |
| 94561 | Oakley | 45,386 | $130,859 | $632,100 | $1,982 | 5.4% | 35.5% |
| 94563 | Orinda | 19,409 | $250,001 | $1,810,100 | $2,407 | 3.0% | 87.6% |
| 94564 | Pinole | 18,835 | $120,833 | $697,100 | $2,738 | 3.5% | 50.4% |
| 94565 | Pittsburg | 99,933 | $95,035 | $563,300 | $2,145 | 7.9% | 34.0% |
| 94523 | Pleasant Hill | 34,789 | $142,622 | $1,038,400 | $2,479 | 4.4% | 64.3% |
| 94801 | Richmond | 33,564 | $75,786 | $593,500 | $1,608 | 6.3% | 30.7% |
| 94804 | Richmond | 44,679 | $86,430 | $618,000 | $1,825 | 6.6% | 44.5% |
| 94805 | Richmond | 15,356 | $114,191 | $738,800 | $2,272 | 7.0% | 55.1% |
| 94572 | Rodeo | 8,712 | $89,074 | $653,500 | $2,143 | 9.6% | 36.3% |
| 94806 | San Pablo | 61,749 | $82,818 | $582,000 | $2,013 | 8.3% | 32.7% |
| 94582 | San Ramon | 47,182 | $211,159 | $1,543,800 | $2,880 | 5.0% | 82.4% |
| 94583 | San Ramon | 39,418 | $184,033 | $1,234,400 | $2,973 | 5.1% | 71.1% |
| 94595 | Walnut Creek | 17,051 | $98,108 | $816,600 | $2,677 | 5.1% | 74.5% |
| 94596 | Walnut Creek | 23,592 | $137,660 | $1,245,000 | $2,471 | 5.4% | 75.8% |
| 94597 | Walnut Creek | 24,235 | $142,685 | $986,700 | $2,557 | 6.2% | 71.4% |
| 94598 | Walnut Creek | 26,293 | $188,170 | $1,307,100 | $2,989 | 3.7% | 81.2% |