Thomas is a city in Custer County, Oklahoma, United States. The population was 1,181 at the 2010 census.

Thomas was named for William Thomas, who owned a general amassing and served as postmaster, when the first make known office was conventional at the store upon February 12, 1894, while this area was allowance of Oklahoma Territory. Joseph W. Morris claimed a homestead at the site during the Cheyenne-Arapaho launch in 1892. The Oklahoma Railway Townsite platted Morris’ land in 1902, the thesame year that the Blackwell, Enid and Southwestern Railroad (later the St. Louis and San Francisco Railway) constructed a pedigree through Thomas. In 1906, the Kansas City, Mexico and Orient Railway (later the Atchison, Topeka and Santa Fe Railway) also built a heritage through the town. Most of the into the future settlers were members of the Amish, the Dunkards, and the Church of the United Brethren in Christ religious groups.

Thomas is located at 35°44′47″N 98°44′54″W / 35.74639°N 98.74833°W / 35.74639; -98.74833 (35.746419, -98.748264). According to the United States Census Bureau, the city has a total Place of 1.2 square miles (3.1 km²), all land.

As of the census of 2000, there were 1,238 people, 486 households, and 337 families residing in the city. The population density was 1,041.8 people per square mile (401.7/km²). There were 596 housing units at an average density of 501.5 per square mile (193.4/km). The racial makeup of the city was 88.85% White, 0.08% African American, 8.08% Native American, 0.57% from other races, and 2.42% from two or more races. Hispanic or Latino of any race were 1.70% of the population.