St Johns is located in Arizona. St Johns, Arizona has a population of 3,416. St Johns is more family-centric than the surrounding county with 33.54% of the households containing married families with children. The county average for households married with children is 22.7%.
The median household income in St Johns, Arizona is $63,672. The median household income for the surrounding county is $34,788 compared to the national median of $69,021. The median age of people living in St Johns is 26.9 years.
The average high temperature in July is 90.7 degrees, with an average low temperature in January of 20.6 degrees. The average rainfall is approximately 11.4 inches per year, with 8 inches of snow per year.
