Mancos, CO has a population of 1,700 and is the 11,979th largest city in the United States. The population density is 2,663 per sq mi which is 5249% higher than the Colorado average and 2840% higher than the national average. The median age in Mancos is 34 which is approximately 7% lower than the Colorado average of 36. In Mancos, 43% of the population over 15 years of age are married, 95% speak English and 4% speak Spanish. 39% of Mancos residents were born in Colorado, 58% were born out of state, 1% were born outside of the United States and 2% were foreign born.