Air Force Academy, CO has a population of 5,957 and is the 5,780th largest city in the United States. The population density is 596 per sq mi which is 1098% higher than the Colorado average and 558% higher than the national average. The median age in Air Force Academy is 21 which is approximately 43% lower than the Colorado average of 36. In Air Force Academy, 16% of the population over 15 years of age are married, 93% speak English and 2% speak Spanish. 6% of Air Force Academy residents were born in Colorado, 83% were born out of state, 7% were born outside of the United States and 5% were foreign born.