Contra Costa
Source:
California
Contra Costa is a megacounty-scale in California with 43 ZIP codes, 1,043,451 people, and top-decile household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.
National county placement
According to ACS 5-Year Estimates, Contra Costa, CA sits among US counties with a top-decile household income, on a megacounty-scale population base, across a wide multi-ZIP mosaic.
- Top 1%
- household income vs 3,210 US counties
- 1,043,451
- combined ZIP population
- 43
- USPS ZIP codes covered
- $140,519
- avg ZIP median income
Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.
Contra Costa lands in the national county income distribution as top-decile household income on megacounty-scale footing (FIPS 06013, 43 ZIPs, combined population 1,043,451). Sort the ZIP table by population before treating the county mean as uniform.
High-income counties with wide ZIP mosaics hide sharp internal gradients. The densest ZIP here is 94565 (Pittsburg) with 84,641 residents - open it beside a thin rural code from the table before treating the county mean as uniform. HUD Fair Market Rents and FBI county tables attach to FIPS 06013, so scorecards stay county-keyed while household income stays ZIP-keyed.
Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.
43
Total ZIPs
1,043,451
Total Population
ZIP Codes in Contra Costa
Side-by-side: Compare 94565 vs 94509 →
| ZIP Code | City | Population | Density |
|---|---|---|---|
| 94565 | Pittsburg | 84,641 | 1,088 |
| 94509 | Antioch | 62,439 | 1,472 |
| 94806 | San Pablo | 59,861 | 2,773 |
| 94513 | Brentwood | 54,605 | 278 |
| 94553 | Martinez | 47,065 | 374 |
| 94521 | Concord | 41,249 | 1,228 |
| 94531 | Antioch | 40,290 | 1,421 |
| 94804 | Richmond | 38,559 | 2,406 |
| 94582 | San Ramon | 38,537 | 1,140 |
| 94520 | Concord | 37,208 | 1,465 |
| 94561 | Oakley | 36,515 | 829 |
| 94583 | San Ramon | 34,859 | 901 |
| 94523 | Pleasant Hill | 33,569 | 1,791 |
| 94526 | Danville | 31,102 | 804 |
| 94801 | Richmond | 29,395 | 1,013 |
| 94549 | Lafayette | 26,864 | 540 |
| 94518 | Concord | 26,778 | 1,900 |
| 94598 | Walnut Creek | 25,818 | 655 |
| 94803 | El Sobrante | 24,904 | 823 |
| 94547 | Hercules | 24,092 | 1,708 |
| 94530 | El Cerrito | 23,877 | 1,911 |
| 94506 | Danville | 22,452 | 463 |
| 94597 | Walnut Creek | 20,277 | 2,002 |
| 94596 | Walnut Creek | 20,037 | 1,299 |
| 94519 | Concord | 18,453 | 1,624 |
| 94564 | Pinole | 18,287 | 1,276 |
| 94563 | Orinda | 17,672 | 395 |
| 94595 | Walnut Creek | 16,425 | 1,179 |
| 94556 | Moraga | 15,229 | 481 |
| 94507 | Alamo | 14,889 | 453 |
| 94805 | Richmond | 13,648 | 2,657 |
| 94505 | Discovery Bay | 13,403 | 326 |
| 94517 | Clayton | 12,385 | 84 |
| 94572 | Rodeo | 8,684 | 773 |
| 94525 | Crockett | 3,127 | 513 |
| 94511 | Bethel Island | 2,137 | 158 |
| 94514 | Byron | 1,360 | 18 |
| 94575 | Moraga | 974 | 2,254 |
| 94528 | Diablo | 964 | 159 |
| 94548 | Knightsen | 412 | 58 |
| 94516 | Canyon | 211 | 93 |
| 94569 | Port Costa | 198 | 32 |
| 94850 | Richmond | 0 | - |
Frequently Asked Questions
What is the population of Contra Costa?
Contra Costa has a total population of 1,043,451 across 43 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Contra Costa?
Contra Costa includes 43 ZIP codes: 94565, 94509, 94806, 94513, 94553, 94521, 94531, 94804, 94582, 94520, and more.