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 United States. An affiliate of Public Radio International and National Public Radio, KCSM is the only station in the Bay Area with a 24-hour jazz format. Hosts of the various programs KCSM produces include veteran jazz musicians, educators, seasoned jazz broadcasters and often a combination of the three.
KCSM is the Bay Area's Jazz Station, broadcasting on KCSM HD1 (Jazz 91) and KCSM HD2. The station features a variety of jazz programs, including "Juke In The Back," "Jazz Night In America with Christian McBride," and "The Jazz Legacy with Richard Seidel." KCSM HD2 also offers programs like "Live At The Bop Stop," "Gospel Memories," and "The Alameda Connection."