State: California
County: Contra Costa
| ZIP | TOWN/CITY | STATE | COUNTY | POP | POP FOR GROUP |
| 94549 | Lafayette | CA | Contra Costa County | 28340 | 112880 |
| 94595 | Walnut Creek | CA | Contra Costa County | 15920 | |
| 94597 | Walnut Creek | CA | Contra Costa County | 20970 | |
| 94596 | Walnut Creek | CA | Contra Costa County | 21070 | |
| 94598 | Walnut Creek | CA | Contra Costa County | 26580 |
GROUP IS OPEN
| ZIP | TOWN/CITY | STATE | COUNTY | POP | POP FOR GROUP |
| 94517 | Clayton | CA | Contra Costa County | 12610 | 134392 |
| 94522 | Concord | CA | Contra Costa County | 451 | |
| 94527 | Concord | CA | Contra Costa County | 619 | |
| 94524 | Concord | CA | Contra Costa County | 622 | |
| 94519 | Concord | CA | Contra Costa County | 17700 | |
| 94518 | Concord | CA | Contra Costa County | 25370 | |
| 94520 | Concord | CA | Contra Costa County | 37240 | |
| 94521 | Concord | CA | Contra Costa County | 39780 |
GROUP IS OPEN
| ZIP | TOWN/CITY | STATE | COUNTY | POP | POP FOR GROUP |
| 94507 | Alamo | CA | Contra Costa County | 15520 | 74366 |
| 94506 | Danville | CA | Contra Costa County | 24300 | |
| 94526 | Danville | CA | Contra Costa County | 33330 | |
| 94528 | Diablo | CA | Contra Costa County | 1216 |
GROUP IS OPEN
| ZIP | TOWN/CITY | STATE | COUNTY | POP | POP FOR GROUP |
| 94511 | Bethel Island | CA | Contra Costa County | 1734 | 115393 |
| 94513 | Brentwood | CA | Contra Costa County | 60130 | |
| 94514 | Byron | CA | Contra Costa County | 1160 | |
| 94505 | Discovery Bay | CA | Contra Costa County | 13440 | |
| 94548 | Knightsen | CA | Contra Costa County | 829 | |
| 94561 | Oakley | CA | Contra Costa County | 39260 |
GROUP IS OPEN
| ZIP | TOWN/CITY | STATE | COUNTY | POP | POP FOR GROUP |
| 94531 | Antioch | CA | Contra Costa County | 42370 | 133480 |
| 94565 | Pittsburg | CA | Contra Costa County | 91110 |
GROUP IS OPEN
| ZIP | TOWN/CITY | STATE | COUNTY | POP | POP FOR GROUP |
| 94530 | El Cerrito | CA | Contra Costa County | 23890 | |
| 94563 | Orinda | CA | Contra Costa County | 19290 | 101985 |
| 94808 | Richmond | CA | Contra Costa County | 139 | |
| 94807 | Richmond | CA | Contra Costa County | 371 | |
| 94802 | Richmond | CA | Contra Costa County | 765 | |
| 94805 | Richmond | CA | Contra Costa County | 13560 | |
| 94801 | Richmond | CA | Contra Costa County | 29000 | |
| 94804 | Richmond | CA | Contra Costa County | 38860 |
GROUP IS OPEN
| ZIP | TOWN/CITY | STATE | COUNTY | POP | POP FOR GROUP |
| 94525 | Crockett | CA | Contra Costa County | 2840 | 112699 |
| 94547 | Hercules | CA | Contra Costa County | 24300 | |
| 94553 | Martinez | CA | Contra Costa County | 45480 | |
| 94523 | Pleasant Hill | CA | Contra Costa County | 31500 | |
| 94569 | Port Costa | CA | Contra Costa County | 199 | |
| 94572 | Rodeo | CA | Contra Costa County | 8380 |
GROUP IS OPEN
| ZIP | TOWN/CITY | STATE | COUNTY | POP | POP FOR GROUP |
| 94820 | El Sobrante | CA | Contra Costa County | 749 | 101849 |
| 94803 | El Sobrante | CA | Contra Costa County | 23530 | |
| 94564 | Pinole | CA | Contra Costa County | 18310 | |
| 94806 | San Pablo | CA | Contra Costa County | 59260 | |