Wellton, AZ has a population of 2,947 and is the 8,906th largest city in the United States. The population density is 102 per sq mi which is 78% higher than the Arizona average and 13% higher than the national average. The median age in Wellton is 66 which is approximately 77% higher than the Arizona average of 37. In Wellton, 72% of the population over 15 years of age are married, 74% speak English and 24% speak Spanish. 28% of Wellton residents were born in Arizona, 49% were born out of state, 1% were born outside of the United States and 21% were foreign born.