Sun Valley
- County:
- Navajo County
- County Seat:
- No
- Area (mi²):
- 31.556
- State:
- Arizona
Sun Valley is a CDP located in Navajo County, Arizona. Sun Valley has a 2025 population of 52. Sun Valley is currently declining at a rate of -25.71% annually and its population has decreased by -44.09% since the most recent census, which recorded a population of 93 in 2020.
The median age in Sun Valley is 52.5 years: 57 years for males, and 0 years for females.