KCSM-FM Jazz 91

KCSM’s public television and radio stations, located in the San Francisco Bay Area and licensed to the San Mateo County Community College District, made their broadcast debuts in 1964. Originally established as student broadcast training facilities, today, the stations have professional staffs and continue to serve as learning laboratories for students. KCSM TV broadcasts 24 hours a day and its 500 kilowatt broadcast signal has a coverage area that includes San Mateo, San Francisco, Santa Clara, Santa Cruz, Alameda, Contra Costa, Marin, Solano, Sonoma and Napa counties, is carried on 60 cable systems in the Bay Area and nearly half a million viewers tune in each week. KCSM Jazz 91 also broadcasts 24 hours a day and has a growing audience that currently numbers more than 200,000. According to Arbitron, the station is among the top 35 "most listened to" non-commercial stations in the U.S. An affiliate of PRI and NPR, KCSM is the only station in the Bay Area with a 24-hour jazz format.