United States Post Office and Courthouse, Federal courthouse in Eureka, United States.

The United States Post Office and Courthouse is a federal building with classical architectural elements, granite facades, and decorative marble interiors occupying about half an acre of downtown space. It houses multiple courtrooms and administrative offices serving the Northern District of California.

Designed by James Knox Taylor in 1910, this federal building symbolized institutional strength through architectural grandeur during an era when such structures represented government authority. Its completion marked a time when federal architecture served as a visible statement of power in local communities.

The building's two New Deal murals, Mining and Forestry and Water and Land, are tempera on canvas works by Thomas Laman, commissioned in 1938 by the Treasury Relief Art Project. They hung in the post office until the building passed into private ownership in 2002; after restoration they were moved to the new United States Courthouse in McKinleyville, California, so they are no longer in Eureka.

The building stands at 314 Fourth Street in downtown Eureka, reachable on foot or by public transport. It passed into private ownership in 2002, so it no longer operates as a post office or federal courthouse; the murals are not inside. Check current use before planning a visit.

The two Thomas Laman tempera murals, Mining and Forestry and Water and Land, were commissioned in 1938 by the Treasury Relief Art Project and hung in the post office until the building passed into private hands in 2002. They were restored and now hang in the new United States Courthouse in McKinleyville, California, not here.