Sun Valley is a populated place in Navajo County, Arizona, United States, east of Holbrook along Interstate 40.

[4] "Sun Valley has always been a sleepy community along the old western highway of Old Route 66 and the newer Interstate 40.

Not much is known about the settlement and how its roots began as a community, but it has and still remains largely rural and sparsely populated.

There are still some large tracts or ranch land around Sun Valley and cattle roam the open range of the landscape.

"[5] As of the census[7] of 2010, there were 316 people, 88 households, and 56 families residing in Sun Valley.