Dacono, CO has a population of 4,623 and is the 6,807th largest city in the United States. The population density is 568 per sq mi which is 1041% higher than the Colorado average and 527% higher than the national average. The median age in Dacono is 33 which is approximately 9% lower than the Colorado average of 36. In Dacono, 61% of the population over 15 years of age are married, 70% speak English and 29% speak Spanish. 57% of Dacono residents were born in Colorado, 27% were born out of state, 0% were born outside of the United States and 16% were foreign born.