Colorado Springs, CO has a population of 448,759 and is the 41st largest city in the United States. The population density is 2,304 per sq mi which is 4527% higher than the Colorado average and 2443% higher than the national average. The median age in Colorado Springs is 35 which is approximately 5% lower than the Colorado average of 36. In Colorado Springs, 56% of the population over 15 years of age are married, 87% speak English and 8% speak Spanish. 33% of Colorado Springs residents were born in Colorado, 56% were born out of state, 3% were born outside of the United States and 8% were foreign born.