Sun City West, AZ has a population of 24,899 and is the 1,742nd largest city in the United States. The population density is 2,287 per sq mi which is 3878% higher than the Arizona average and 2424% higher than the national average. The median age in Sun City West is 75 which is approximately 103% higher than the Arizona average of 37. In Sun City West, 85% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 3% of Sun City West residents were born in Arizona, 91% were born out of state, 0% were born outside of the United States and 6% were foreign born.