Krum, TX has a population of 4,771 and is the 6,671st largest city in the United States. The population density is 1,931 per sq mi which is 1892% higher than the Texas average and 2031% higher than the national average. The median age in Krum is 34 which is approximately 2% lower than the Texas average of 34. In Krum, 71% of the population over 15 years of age are married, 85% speak English and 13% speak Spanish. 67% of Krum residents were born in Texas, 23% were born out of state, 1% were born outside of the United States and 9% were foreign born.