Lyons, CO has a population of 2,027 and is the 10,942nd largest city in the United States. The population density is 1,626 per sq mi which is 3165% higher than the Colorado average and 1694% higher than the national average. The median age in Lyons is 36 which is approximately 2% lower than the Colorado average of 36. In Lyons, 56% of the population over 15 years of age are married, 92% speak English and 1% speak Spanish. 31% of Lyons residents were born in Colorado, 59% were born out of state, 1% were born outside of the United States and 9% were foreign born.