Rico, CO has a population of 186 and is the 24,783rd largest city in the United States. The population density is 246 per sq mi which is 394% higher than the Colorado average and 171% higher than the national average. The median age in Rico is 47 which is approximately 28% higher than the Colorado average of 36. In Rico, 35% of the population over 15 years of age are married, 94% speak English and 6% speak Spanish. 28% of Rico residents were born in Colorado, 63% were born out of state, 3% were born outside of the United States and 6% were foreign born.