I was just directed to a Santa Maria improv group named Mission Improvable by someone from work (thanks Rick). I recognize some of the players in the group from John Kinde's days running the Theatresports franchise up there, including Jeanne Sparks who was always a political oasis for me. Several of us from the Santa Barbara Improv Workshop used to travel up and perform with John's group. They always had large and enthusiastic crowds, and we had a good time performing with their players. Michael Passarelli is the director of this group, and according to an article in the Santa Maria Times, he's also the director of a San Luis Obispo based improv group. I'll try and get more info on that for another post.
In the meantime, Mission Improvable is performing regularly on the 2nd Friday of each month, with shows posted for the following dates: October 13, November 10, and December 8. They perform at the Accoustic Lounge, which is located upstairs in the Santa Maria Town Center East. That's the S.E. corner of Broadway and Main Street (Google Map).
They also teach a class on Monday nights from 5:30 to 7:00 pm at the same location.