Gunbarrel, CO has a population of 9,559 and is the 4,071st largest city in the United States. The population density is 1,520 per sq mi which is 2953% higher than the Colorado average and 1578% higher than the national average. The median age in Gunbarrel is 42 which is approximately 16% higher than the Colorado average of 36. In Gunbarrel, 52% of the population over 15 years of age are married, 86% speak English and 9% speak Spanish. 23% of Gunbarrel residents were born in Colorado, 68% were born out of state, 3% were born outside of the United States and 6% were foreign born.