Centennial Park, AZ has a population of 1,528 and is the 12,579th largest city in the United States. The population density is 705 per sq mi which is 1125% higher than the Arizona average and 678% higher than the national average. The median age in Centennial Park is 16 which is approximately 57% lower than the Arizona average of 37. In Centennial Park, 46% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 35% of Centennial Park residents were born in Arizona, 65% were born out of state, 0% were born outside of the United States and 0% were foreign born.