The station was first signed on January 1, 1984, as KKUS by Cabrillo Communications Inc.[3]
On May 1, 1992, Cabrillo sold KKUS to Westcoast Broadcasting Inc. for $800,000.[4] The new owner changed the station's call sign to KKJG on June 1[5][6] and introduced a country music format branded "K-Jug".
Tom and Becky in the Morning, KKJG's morning program, is hosted weekdays by Tom Keffury and Becky Kingman. Keffury is a longtime resident of San Luis Obispo County who arrived at KKJG in October 2005. In the 1990s, Keffury was a morning disc jockey at KDDB. Kingman graduated with a degree in journalism from Cal Poly in 2007 and has lived in San Luis Obispo County since the early 2000s.[8] Preceding the morning show is Farmview Radio, an agricultural news show. Airing Sunday evenings is Country Countdown USA, hosted by Lon Helton.