St Johns is located in Arizona. St Johns, Arizona has a population of 3,895. St Johns is more family-centric than the surrounding county with 29% households with children. The county percentage for households with children is 25%.
The median household income in St Johns, Arizona is $49,412. The median household income for the surrounding county is $35,573 compared to the national median of $66,222. The median age of people living in St Johns is 36.3 years.
The average high temperature in July is 82.44 degrees, with an average low temperature in January of 16.22 degrees. The annual precipitation is 11.99.