So do I, but I've tried to find others and I've yet to find any.
Community college? I'm one of three bike commuters (of 4,200 students, and one rider is a professor).
Local university? 6 bikes, all Wal Mart specials in varying disrepair.
Bike shop? They haven't worked on a fixed gear since last October, and that was a dedicated track bike.
Starbucks & all other coffee shops? No bikes at all.
I'm also in the "road bike scene" who would be most likely to own a fixed gear for winter training, but I haven't heard of anyone from that group riding through the winter.