Blanchard is a city in McClain and Grady counties in the U.S. state of Oklahoma. The population is approx. 7,670 . Blanchard is part of a rapidly growing area of northern McClain and Grady counties known as the "Tri-City Area" with Newcastle and Tuttle. The townsite was established by three lot sales beginning with the Canadian Valley Construction Company sale on September 19, 1906. The second sale was held on July 18, 1907, and final lots were sold on March 25, 1908, by the Blanchard Townsite Company. Within a year the town was described as having forty business establishments, including a state and national bank, four blacksmith shops, three livery barns, two grain elevators, and a weekly newspaper.