Eagle, CO has a population of 6,603 and is the 5,390th largest city in the United States. The population density is 1,438 per sq mi which is 2788% higher than the Colorado average and 1487% higher than the national average. The median age in Eagle is 36 which is approximately 2% lower than the Colorado average of 36. In Eagle, 62% of the population over 15 years of age are married, 83% speak English and 16% speak Spanish. 47% of Eagle residents were born in Colorado, 42% were born out of state, 1% were born outside of the United States and 10% were foreign born.