Sun Lakes, AZ has a population of 14,828 and is the 2,867th largest city in the United States. The population density is 2,760 per sq mi which is 4700% higher than the Arizona average and 2946% higher than the national average. The median age in Sun Lakes is 72 which is approximately 95% higher than the Arizona average of 37. In Sun Lakes, 85% of the population over 15 years of age are married, 95% speak English and 2% speak Spanish. 3% of Sun Lakes residents were born in Arizona, 89% were born out of state, 1% were born outside of the United States and 7% were foreign born.