Originally an AM daytimer--6am to sunset it signed on as KYAC and was an urban format in 1965. In 1983 the station was granted full-time 24 hours a day broadcast day by the FCC. The station was once KGAA, a country music station owned by Monroe Broadcasting, a Spokane-based company that also owned that city's country station, KGA. The station would be sold off in 1979 to Community Communications of Gresham, Oregon. The station would change its calls to KARR in 1984, and later became a station owned by Family Radio.
On February 12, 2014, Family Radio announced that KARR will cease operations on February 28 due to the expiration of the lease at its transmitter location. The station intends to eventually return to the air from a new site.