Heeney, CO has a population of 350 and is the 21,615th largest city in the United States. The population density is 1,540 per sq mi which is 2992% higher than the Colorado average and 1599% higher than the national average. The median age in Heeney is 39 which is approximately 6% higher than the Colorado average of 36. In Heeney, 16% of the population over 15 years of age are married, 83% speak English and 17% speak Spanish. 0% of Heeney residents were born in Colorado, 83% were born out of state, 0% were born outside of the United States and 17% were foreign born.