There are 49 zip codes in Alameda County, California. The most populated is 94544, located in Hayward. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 94544 | 77,712 | Hayward |
| 94536 | 71,445 | Fremont |
| 94568 | 71,068 | Dublin |
| 94587 | 69,502 | Union City |
| 94541 | 67,401 | Hayward |
| 94538 | 66,215 | Fremont |
| 94501 | 63,340 | Alameda |
| 94539 | 53,464 | Fremont |
| 94601 | 52,102 | Oakland |
| 94550 | 49,463 | Livermore |
| 94577 | 47,937 | San Leandro |
| 94560 | 47,470 | Newark |
| 94546 | 45,761 | Castro Valley |
| 94566 | 45,145 | Pleasanton |
| 94605 | 44,477 | Oakland |
| 94578 | 42,350 | San Leandro |
| 94551 | 40,025 | Livermore |
| 94611 | 39,780 | Oakland |
| 94606 | 38,459 | Oakland |
| 94555 | 37,671 | Fremont |
| 94603 | 37,042 | Oakland |
| 94588 | 35,162 | Pleasanton |
| 94621 | 34,911 | Oakland |
| 94608 | 34,083 | Emeryville |
| 94545 | 33,700 | Hayward |
| 94610 | 32,404 | Oakland |
| 94602 | 31,104 | Oakland |
| 94580 | 29,377 | San Lorenzo |
| 94607 | 27,019 | Oakland |
| 94619 | 27,018 | Oakland |
| 94704 | 25,711 | Berkeley |
| 94609 | 25,175 | Oakland |
| 95391 | 23,696 | Tracy |
| 94706 | 20,860 | Albany |
| 94703 | 20,404 | Berkeley |
| 94579 | 20,272 | San Leandro |
| 94612 | 17,742 | Oakland |
| 94702 | 17,473 | Berkeley |
| 94618 | 17,285 | Oakland |
| 94542 | 16,188 | Hayward |
| 94552 | 14,948 | Castro Valley |
| 94705 | 14,508 | Berkeley |
| 94502 | 14,225 | Alameda |
| 94707 | 12,596 | Berkeley |
| 94709 | 12,200 | Berkeley |
| 94710 | 8,471 | Berkeley |
| 94720 | 5,322 | Berkeley |
| 94586 | 964 | Sunol |
| 94613 | 612 | Oakland |