Post Offices List in Eureka City, California:
| Downtown Eureka Post Office | 514 H St, Eureka, CA 95501 |
| Eureka Post Office | 337 W Clark St, Eureka, CA 95501 |
| Henderson Post Office | 2906 F St, Eureka, CA 95501 |
| Cutten Post Office | 3901 Walnut Dr, Eureka, CA 95503 |