24/7 Biohazard and Crime Scene Cleanup in Duncan, OK

Duncan is the county seat of Stephens County in south-central Oklahoma, about 80 miles south of Oklahoma City and 30 miles east of Lawton.

Duncan began as Scotsman William Duncan's trading post at the crossing of the Chisholm Trail and the military road between Fort Arbuckle and Fort Sill, in what was then Pickens County of the Chickasaw Nation; the first train arrived on June 27, 1892, a date celebrated as the town's birth date.

The Chisholm Trail passed just east of present-day Duncan, and an estimated 9.8 million Longhorn cattle were herded up the trail between Texas and Abilene, Kansas, during its years of use.

Duncan is the birthplace of the Halliburton Corporation — Erle P. Halliburton established the New Method Oil Well Cementing Company there in 1919, and Halliburton still maintains seven complexes and an employee recreation park in Duncan even though its corporate offices moved first to Dallas and later to Houston.

When Duncan became the county seat at statehood in 1907, the courthouse was placed in the middle of Main Street as a compromise between the county's north and south, with Main Street making a wide circle around the building at both ends.

Oil wells opened in Stephens County in 1918 and triggered rapid development in Duncan, which once promoted itself as "The Buckle on the Oil Belt."

Duncan had 22,692 residents in the 2020 census.

Duncan had 9,356 households in the 2020 census, and about 62% of its homes were owner-occupied.

Oklahoma lawmakers have designated Duncan the state's official "Crape Myrtle Capital," and the flowering trees are celebrated in a downtown mural and plantings across the city.

Duncan's Chisholm Trail Heritage Center features Paul Moore's bronze "On the Chisholm Trail," a sculpture nearly 15 feet high and almost 35 feet across, and visible trail ruts survive at Monument Hill outside town.