WKSX signed on August 26, 1985 as the FM to 1190 WJES-AM/Johnston, simulcasting full-time. Both stations had a mostly satellite-fed adult contemporary format, with local high school sports. For a time in the late 1980s/early 1990s, the station would feature album rock at night, but was gone by the fall of 1991, replaced with oldies. The station segued into oldies full-time by 1992 as "Oldies 92.7".
In 1996, WKSX was paired with 92.1 WJRQ in Saluda, South Carolina. WJRQ became WJES-FM and both stations became "The Twins", still with an oldies format. This lasted until 2004, when WJES-FM was sold and moved to Irmo, South Carolina, becoming WWNU. Since the sale, WKSX has continued with the Oldies format and features Carolina Beach Music programming on the weekends. The station's news and sports programming includes NBC Radio News, South Carolin Radio Network and USC Gamecocks athletics.
The station is owned by Michaelsen Communications LLC.