It is licensed to Round Rock, Texas with an ERP of 4,500 watts from a transmitter site near West Lake Hills, and is currently owned by Educational Media Foundation.

[2][3] KFMK was launched on November 25, 1998 as the Rhythmic Oldies-formatted "Jammin' 105.9", after initial signal testing and stunting as alternative rocker "The Planet 105.9", which began on July 7 of that year.

The station dropped Kidd Kraddick's morning show, but kept airing Ryan Seacrest, most likely due to a contract issue (this ended on May 19, 2010).

On May 21, 2010, Clear Channel announced that it planned to move KFMK's Hip Hop format to the 102.3 frequency, where it has better coverage and a more powerful signal, starting May 31.

The deal also included the lease of an HD subchannel on KVLR to air programming from CRISTA for two years after closing.