Sun City West is one of the sister cities to Sun City. It was created in the late 1970’s once Sun City was running out of land, due to the population growth. Sun City West was constructed by Del Webb, just as Sun City was. In 2010 the population was 24,535 people which is 1.6% the amount of people that are in Phoenix, AZ an only about .38% of the population in all of Arizona. It is a very small community mostly made up of retirement folks.