Alma, CO has a population of 316 and is the 22,198th largest city in the United States. The population density is 729 per sq mi which is 1365% higher than the Colorado average and 705% higher than the national average. The median age in Alma is 37 which is approximately 1% higher than the Colorado average of 36. In Alma, 35% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 23% of Alma residents were born in Colorado, 76% were born out of state, 1% were born outside of the United States and 1% were foreign born.