Dolores, CO has a population of 1,074 and is the 14,701st largest city in the United States. The population density is 1,476 per sq mi which is 2863% higher than the Colorado average and 1529% higher than the national average. The median age in Dolores is 31 which is approximately 14% lower than the Colorado average of 36. In Dolores, 45% of the population over 15 years of age are married, 84% speak English and 14% speak Spanish. 42% of Dolores residents were born in Colorado, 51% were born out of state, 1% were born outside of the United States and 5% were foreign born.