Joseph City, AZ has a population of 1,137 and is the 14,370th largest city in the United States. The population density is 154 per sq mi which is 167% higher than the Arizona average and 70% higher than the national average. The median age in Joseph City is 27 which is approximately 29% lower than the Arizona average of 37. In Joseph City, 57% of the population over 15 years of age are married, 83% speak English and 4% speak Spanish. 71% of Joseph City residents were born in Arizona, 26% were born out of state, 0% were born outside of the United States and 2% were foreign born.