Contra Costa County | Heraldry | | Coat of Arms |
|---|
| Richmond | 116,448 | — |
| Martinez | 37,287 | — |
| Antioch | 115,291 | — |
| Brentwood | 64,292 | — |
| Pittsburg | 76,416 | — |
| San Pablo | 32,127 | — |
| San Ramon | 84,605 | — |
| Pinole | 19,022 | — |
| Hercules | 26,016 | — |
| Clayton | 11,070 | — |
| Oakley | 43,357 | — |
11 total
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