Krum is northwest of Denton in west central Denton County. The community reported a population of seventy-five in 1892, and by 1900 it was thriving, with a number of businesses, four churches, and a school. Also in 1900 the railroad shipped at least half a million bushels of wheat, prompting the claim that Krum was the "largest inland grain market in the world."
Krum's growth and prosperity continued until about 1925, when its population reached 750. The community declined as cars and trucks began carrying trade to larger markets and as young people departed for college or city jobs. Access from Krum to Interstate Highway 35 made commuting to city jobs convenient, and the community's population rose to 605 by 1978, to 917 by 1982, and to 1,542 by 1990. In 2000 the population was 1,979.