Rio Verde, AZ has a population of 1,946 and is the 11,179th largest city in the United States. The population density is 450 per sq mi which is 682% higher than the Arizona average and 396% higher than the national average. The median age in Rio Verde is 73 which is approximately 96% higher than the Arizona average of 37. In Rio Verde, 96% of the population over 15 years of age are married, 93% speak English and 2% speak Spanish. 1% of Rio Verde residents were born in Arizona, 94% were born out of state, 0% were born outside of the United States and 5% were foreign born.