KMGM (105.5 FM) is an American radio station licensed to serve the community of Montevideo, Minnesota, United States.

[4] The station launched in October 1982 with a full service radio format that mixed middle of the road, oldies, and Top 40 music with 20 hours per week of farm and agricultural programming.

In November 1979, Jerald Hennen's Western Minnesota Stereo, Inc., applied to the Federal Communications Commission (FCC) for a construction permit for a new broadcast radio station.

[16] Broadcast veteran and KMGM founder Jerald "Jerry" C. Hennen died at 69 on July 7, 2009, in Fargo, North Dakota.

[17] His son, Scott Hennen, started working at KMGM while still in high school before moving on in the 1990s to become a disc jockey at KQHT (104.3 FM) in Grand Forks, North Dakota.