WACA is a Spanish news/talk formatted broadcast radio station licensed to Laurel, Maryland, serving the Washington, D.C. metropolitan area.

[7][8][9][10][11] Before 1969, WLMD was a MOR (Middle Of The Road) formatted radio station and held to the model created by WMAL and WBAL in Washington and Baltimore, respectively.

Its dismal ratings, primarily due to being a relatively low power AM station only broadcasting during the day with a poor coverage area, led to a format change beginning in 1975.

The new Progressive Country music format was loved by the small audience it attracted and ratings increased modestly.

With the outright sale of 1540 AM (now WDON) closing in July 2021, the WACA callsign relocated to 900 AM, replacing WCLM, where the station commenced 24/7 broadcasting.