Guymon is a city and county seat of Texas County, Oklahoma, in the Oklahoma Panhandle. As of the 2010 census, the city population was 11,442, an increase of 6.5 percent from 10,472 in 2000, and represents more than half of the population of the county. Cattle feedlots, corporate pork farms, and natural gas dominate its economy, with wind energy production and transmission recently diversifying landowners' farms.
In the 1890s, Edward T. "E.T." Guymon, president of the Inter-State Land and Town Company, purchased a section of land west of the Beaver River, also known as the North Canadian River. The site grew very rapidly after the Chicago, Rock Island and Pacific Railway (Rock Island) built a line from Liberal, Kansas to Texhoma, Texas in 1901. A community, first named Sanford by the U.S. Post Office Department, was situated along the line. It was renamed Guymon a month later by postal officials to avoid confusion with the town of Stratford, Texas, which was further down the line. Guymon incorporated in 1901. The town plat was filed in Beaver County, Oklahoma Territory, in 1904.
Guymon's growth was helped when most of the businesses moved there from the nearby town of Hardesty. One of these was the newspaper, Hardesty Herald, which owner Richard B. Quinn quickly renamed as the Guymon Herald.