Check out these online groups and meetups.

http://www.meetup.com/Valley-of-the-Sun-RPG-Meetup/
http://www.meetup.com/West-Phoenix-RPG-Players/
http://www.meetup.com/EV-DND/
http://www.meetup.com/Tabletop-Games-West-Valley-Arizona/
http://www.meetup.com/phxgaymers/
http://www.meetup.com/SURPRISE-RPG/
http://www.meetup.com/Alexs-Drunken-5th-Edition-D-D-Adventures/
http://www.meetup.com/Mesa-Tempe-D-D-Pathfinders/
https://www.facebook.com/PhoenixGamingLounge/events
https://www.facebook.com/imperial.outpost.7/

A big thank you to Sulis Shadd for compiling the above list.