
St Johns
- County:
- Apache County
- County Seat:
- Yes
- Area (mi²):
- 2.281
- State:
- Arizona
St. Johns is a CDP located in Apache County, Arizona. St. Johns has a 2025 population of 479. It is also the county seat of .St. Johns is currently growing at a rate of 0.21% annually but its population has decreased by -23.36% since the most recent census, which recorded a population of 625 in 2020.
The average household income in St. Johns is $75,091 with a poverty rate of 24.83%. The median age in St. Johns is 28 years: 25.1 years for males, and 39.5 years for females.