McCoy, CO has a population of 29 and is the 28,614th largest city in the United States. The population density is 99 per sq mi which is 98% higher than the Colorado average and 9% higher than the national average. The median age in McCoy is 62 which is approximately 69% higher than the Colorado average of 36. In McCoy, 76% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 24% of McCoy residents were born in Colorado, 76% were born out of state, 0% were born outside of the United States and 0% were foreign born.