KGRG-FM (89.9 FM) is a radio station in Auburn, Washington owned by Green River College.

KGRG-FM broadcasts GRCC and local high school playoff athletic events live.

The station antenna is located within the dense residential neighborhood of Lakeland Hills in Auburn, Washington near the intersection of Panorama Drive and Hazel Ave,[1] near the King/Pierce County border.

During November 2023, the station switched to a Modern AC-leaning Top 40 presentation, moving much of the alternative music onto the HD-2 signal and KGRG (AM).

During June 2024, KGRG-FM went silent due to "...the loss of the transmitting antenna, and other technical problems".