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KZST logo.png
City Santa Rosa, California
Broadcast area Sonoma County, California
Branding 100.1 KZST
Slogan Positively Sonoma County FM 100
Frequency 100.1 MHz
First air date April 18, 1971
Format Adult Contemporary
ERP 6,000 watts
HAAT 75 meters
Class A
Facility ID 55430
Callsign meaning K ZeST
Owner Redwood Empire Stereocasters
Webcast Listen Live

KZST is a radio station based and licensed in Santa Rosa, California, with a frequency of 100.1 MHz. Its first broadcast came on April 18, 1971 (the 65th anniversary of the Great earthquake), making KZST "the first FM station between here (the San Francisco Bay Area) and Portland, Oregon."[1]

Founded by Gordon Zlot, KZST remains under the ownership of his company, Redwood Empire Stereocasters. The station plays adult contemporary music, with a family-friendly format aimed at so-called soccer moms who often listen to the radio with their children present. During the holiday season, KZST plays Christmas music. (late November - Christmas Day)

Brent Farris has broadcast his weekday "Morning Showgram" for more than 25 years, the longest current tenure of any radio host in Sonoma County. Jim Grady, the weekend morning host, held that distinction until March 26, 2004, when he was released from news/talk station KSRO after 44 years.

Newscasts are delivered in a brief, headline-style format during morning and afternoon drive times.

The KZST-FM studios and offices

"Smooth 93.7" KJZY shares the same building and ownership.


  1. ^ "". Smoothjazz.Com Road Trip - Santa Rosa, CA. Retrieved 2 April 2006. 

External links[edit]

Coordinates: 38°25′08″N 122°40′37″W / 38.419°N 122.677°W / 38.419; -122.677