Krum, TX has a population of 4,508 and is the 6,884th largest city in the United States. The population density is 1,837 per sq mi which is 1808% higher than the Texas average and 1928% higher than the national average. The median age in Krum is 32 which is approximately 7% lower than the Texas average of 34. In Krum, 71% of the population over 15 years of age are married, 90% speak English and 10% speak Spanish. 68% of Krum residents were born in Texas, 25% were born out of state, 1% were born outside of the United States and 6% were foreign born.