Clayton’s post office opened in 1907, and 2 of its places are on the National Register
Most of Clayton was built recently: 6% of its homes predate 1940 and the median home dates from 1982. Its Register listings are the Clayton High School-Auditorium and the Frisco Railroad Depot. Below: 1 old photo or paper, maps from 1901 on, and the census since 1950.
The Clayton post office opened in 1907, the earliest record of the town by name. Another post office, Dexter (1894), opened inside today’s town and later closed.
First census: 612 in 19502020 census: 555119 years
Founding year: the first Clayton post office (Blevins & Helbock, CC0).The full story ↓
What stands out about Clayton’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Clayton was formerly known as Dexter. A United States Post Office was established at Dexter, Indian Territory on March 31, 1894, and was named for Dexter Chapman, early-day resident.
The official name of the post office name changed to Clayton, Indian Territory on April 5, 1907. Its name is thought to have been derived from Clayton, Missouri. It is also possible the town renamed itself after William H.H. Clayton, judge of the U.S. Court for the Central District of Indian Territory. Judge Clayton was prominent in the role to gain Oklahoma’s statehood.
Clayton is the largest town or community in northern Pushmataha County. It is the region's largest trading center due to its relative distance from the county seat of Antlers—36 miles.
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 Wikimedia Commons (8), 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) 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.