Frederick is a city and county seat of Tillman County, Oklahoma, United States. Once titled "The Friendly City", its charm and receptiveness leaves visitors feeling like locals. The population was 3,940 at the 2010 census. This is an agriculture based community primarily with wheat, cotton, and cattle. Frederick is home to three dairies, a 1400 acre industrial park and a regional airport. Also at the regional airport, is a World War II hangar that houses the Airborne Demonstration Team (www.wwwiiadt.org.)
Frederick was a major stop on the Wichita Falls and Northwestern Railway, one of the Frank Kell and Joseph A. Kemp properties which operated from 1906 to 1923 from Wichita Falls to Forgan in the Oklahoma Panhandle. The line was sold to the Missouri-Kansas-Texas Railroad. The link to Frederick was abandoned in 1973, when Altus, Oklahoma became the northern terminus of the successor railroad.