Sekiu dates to 1879, and 1 of its places is on the National Register
Its Register listing is the Sekiu School.
How Sekiu began
When was Sekiu founded?
Sekiu dates its founding to 1879 (Wikipedia’s history). Its post office opened in 1894.
1 historic place in Sekiu
The country’s official list of buildings and places worth saving.
Architectural styles listings
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
Lost post offices
Sekiu’s post office has been open since 1917. Another post office, Clallam, opened and closed inside today’s town.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Questions about Sekiu’s history
What year was Sekiu founded?
In 1879, according to Wikipedia’s history of the town. Sekiu’s post office opened in 1894.
What is on the National Register in Sekiu?
One place: the Sekiu School (listed 1991).
Memory lane
What the archives can’t tell you, neighbors can.
Where this page comes from
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From the National Register of Historic Places (1), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.