Roxborough Park, CO has a population of 9,657 and is the 4,041st largest city in the United States. The population density is 1,046 per sq mi which is 2001% higher than the Colorado average and 1055% higher than the national average. The median age in Roxborough Park is 38 which is approximately 4% higher than the Colorado average of 36. In Roxborough Park, 79% of the population over 15 years of age are married, 94% speak English and 4% speak Spanish. 46% of Roxborough Park residents were born in Colorado, 49% were born out of state, 0% were born outside of the United States and 5% were foreign born.