In Arizona, there are several Humanist organizations of note. This is not necessarily an exhaustive list nor is there any other like-minded organizations listed even if they may well be described as Humanist in nature. We will add more to the list as they come into our awareness.
The Humanist Society of Greater Phoenix: www.hsgp.org.
Or Adam Congregation For Humanistic Judaism: http://www.oradam.com/
Humanists of Northern Arizona: https://www.facebook.com/humanistsnaz/
Affinis Humanity Coalition: https://www.ahcoalition.org/