The station signed on the air on February 1, 1990; 34 years ago (February 1, 1990). The original call sign was KVVQ. Initially, it broadcast middle of the road music and talk programming.[2] On February 19, 2001, then-owner Infinity Broadcasting changed the call letters to KRAK.[3] That call sign was formerly used by a well-known 50,000 watt country music station in Sacramento, which is now KHTK1140 AM. On July 31, 2008, CBS Radio announced plans to sell its mid-size and small market stations (including 910 KRAK) to focus more on major market clusters. However, such a sale was never consummated.
In September 2012, KRAK began a transition to CBS Sports Radio with hourly updates. The station dropped ESPN and began 24-hour broadcasts of CBS Sports Radio on January 2, 2013.[5] KMPS carried Los Angeles Angels baseball games until 2019.
On February 2, 2017, CBS Radio announced it would merge with Entercom.[6] The merger was approved on November 9, 2017, and was consummated on November 17.[7][8] On December 11, 2017, the station took on the KMPS call sign.[3] Those call letters had been transferred from Seattle sister station KSWD.
On May 6, 2019, Entercom sold KMPS and KVFG to El Dorado Broadcasters for $1 million.[9] The sale was completed on August 15. Afterwards, KMPS went silent due to financial reasons. Around August 2020, KMPS returned to the air with a simulcast of 103.1 KXVV’s Regional Mexican format.