| KSUM | |
| Airdate: | December 31, 1948[1] |
| Frequency: | 1370 kHz C-QUAM AM Stereo |
| City: | Fairmont, Minnesota |
| Format: | Country music |
| Owner: | Linder Radio Group |
| Licensee: | City of Lakes Media, Inc. |
| Facility Id: | 73656 |
| Power: | 1,000 watts |
| Branding: | KSUM 1370 AM |
| Class: | B |
| Webcast: | Listen Live |
| Website: | KSUM |
| Sister Stations: | KFMC-FM, KEMJ |
| Translator: | K246CW (97.1 MHz) |
| Licensing Authority: | FCC |
KSUM (1370 AM) is a radio station licensed to Fairmont, Minnesota. The station broadcasts a country music format and is owned by City of Lakes Media.
On August 21, 2020, the station also began broadcasting on 97.1 MHz from its translator, K246CW, located at the same site as the AM facility and its sister station, KFMC.