The station first went on the air in November 1946 and was a CBS Radio affiliate. KROP had a music format from the 1950s to the early 1980s, when it switched to a news/talk format. In 1995, it switched to Country Music format. This lasted until 1998, when the station became KKSC, "ESPN 1300", a sports talk station affiliated with ESPN Radio. Though the station's audience grew with the sports format, KKSC had trouble selling the format to advertisers, rendering the station dependent on the profits of sister station KSIQ. Commonwealth Communications purchased the station from Stodelle Broadcasting in 1999; two years later, the station changed back to KROP and began playing a Classic Country format provided by ABC Radio (now Citadel Media)'s Real Country service. Cherry Creek Radio bought the station in 2003.
In August 2010, LarDog Communications,LLC. purchased KROP, installed new state of the art broadcasting equipment and changed the format to talk radio. KROP offers the only talk format in the Imperial County.
Los Angeles Dodgers Baseball as well as Brawley Wildcat and Imperial Tigers Football and Baseball are broadcast live and via the World Wide Web.