Eureka is an
unincorporated community
An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have ...
in
Walla Walla County
Walla Walla County is a county located in the U.S. state of Washington. As of the 2020 census, its population was 62,584. The county seat and largest city is Walla Walla. The county was formed on April 25, 1854 and is named after the Walla Wall ...
, in the
U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...
of
Washington
Washington commonly refers to:
* Washington (state), United States
* Washington, D.C., the capital of the United States
** A metonym for the federal government of the United States
** Washington metropolitan area, the metropolitan area centered on ...
.
History
Eureka was laid out in 1904, and named after nearby Eureka Flat. A post office called Eureka was established in 1889, and remained in operation until 1964.
References
Unincorporated communities in Walla Walla County, Washington
Unincorporated communities in Washington (state)
{{WallaWallaCountyWA-geo-stub