Aguilar, CO has a population of 491 and is the 19,648th largest city in the United States. The population density is 1,252 per sq mi which is 2414% higher than the Colorado average and 1281% higher than the national average. The median age in Aguilar is 43 which is approximately 18% higher than the Colorado average of 36. In Aguilar, 56% of the population over 15 years of age are married, 84% speak English and 16% speak Spanish. 66% of Aguilar residents were born in Colorado, 28% were born out of state, 0% were born outside of the United States and 6% were foreign born.