Sequim’s post office opened in 1907, and 2 of its places are on the National Register
More historic than 24% of U.S. towns · #159 of 285 in Washington. What drives it
Most of Sequim was built recently: 4% of its homes predate 1940 and the median home dates from 1993. Its Register listings are the Dungeness River Bridge and the Sequim Opera House. Below: 2 old photos and papers, maps from 1917 on, and the census since 1920.
The Sequim post office opened in 1907, the earliest record of the town by name. Another post office, Seguin (1879), opened inside today’s city and later closed.
First census: 402 in 19202020 census: 8,024119 years
How did Sequim get its name?
The name Sequim is derived from the Klallam word sxʷčkʷíyəŋ, which means "hunting ground" or "place for going to shoot".
More on the name
It was adopted as the name of the settlement in 1879, with the spelling replacing the earlier "Seguim".
How historic is Sequim?
C−
More historic than 24% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Sequim is more historic than 24% of U.S. towns, #159 of 285 in Washington. Its National Register listings hold the grade up; its age pulls it down.
C−
HistoryA character grade: shown, never part of Sequim’s overall grade.
Few Washington towns list much on the Register (a typical Washington town has 0.1 per 10,000 residents, the U.S. 2.4), so Sequim’s 2.5 sits above most of its state (67% of Washington towns have fewer) while its 2 listings outnumber those of 60% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from D to C+. The pre-1940 share (±2.0 points) is firm at this size. The founding year is the first post office, not a stated founding date.
Founding year: the first post office (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Sequim’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Lost post offices, old corners and places now gone
Sequim’s post office has been open since 1907. Another post office, Seguin, opened and closed inside today’s town.
Seguin
1879–1907
Sequim
1907–today
18701950today
Hamlets and corners on the map
City Center Mobile Home ParkClasen Cove Estates Mobile Home ParkDukes Mobile Home ParkHendrickson Heritage Mobile Home ParkHide Away Mobile Home ParkJuniper Mobile EstatesSequim West Mobile Home ParkSpruce West Mobile Home ParkSunnyside Mobile CourtWest Alder Mobile Home Park
Gone or out of use
Duke's Private AirportairportO M H Airportairport
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Fossils discovered in the late 1970s – at a dig near Sequim known as the Manis Mastodon site, by Carl Gustafson, an archaeologist at Washington State University – included a mastodon bone with an embedded bone point, evidencing the presence of hunters in the area about 14,000 years ago. According to Michael R. Waters, an archaeologist at Texas A&M University, this is the first hunting weapon found that dates to the pre-Clovis period.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
The Sequim post office opened in 1907, the earliest record of the town by name (U.S. post office records).
How does Sequim rank for history?
Sequim is more historic than 24% of U.S. towns, #159 of 285 in Washington. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
What is on the National Register in Sequim?
Two places: the Dungeness River Bridge (listed 1982) and the Sequim Opera House (1991).
How old are the homes in Sequim?
4% of Sequim’s homes were built before 1940 (Census estimate, ±2.0 points), against a typical 4.3% for a Washington town; the median home was built in 1993.
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).
From Wikimedia Commons (17), the Library of Congress (1), Wikidata (1), the National Register of Historic Places (2), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.