| KZRX | |
| City: | Dickinson, North Dakota |
| Area: | Dickinson, North Dakota |
| Branding: | Z92.1 |
| Frequency: | 92.1 MHz |
| Airdate: | (as KRRB) |
| Format: | Mainstream rock |
| Erp: | 17,000 watts |
| Haat: | 122m (400feet) |
| Class: | C3 |
| Facility Id: | 57741 |
| Former Callsigns: | KRRB (1983–1998) |
| Affiliations: | Premiere Networks |
| Owner: | iHeartMedia, Inc. |
| Licensee: | iHM Licenses, LLC |
| Sister Stations: | KCAD, KLTC |
| Webcast: | Listen Live |
| Website: | kzrx921.iheart.com |
| Licensing Authority: | FCC |
KZRX (92.1 FM), known as "Z-92.1", is a radio station broadcasting a mainstream rock format serving Western North Dakota from Dickinson, North Dakota. The station is currently owned by iHeartMedia, Inc.
Signed on the air as KRRB in 1983 with an AC format, KZRX signed on in 1998, after Roberts Radio bought the station from Roughrider Broadcasting. KZRX went under a short lived moniker, aliasing themselves as "92.1 The Point"; and later as "Z92", starting back in the spring of 2001. The station ran a Hot AC format, then a mainstream rock format. For the first time since the frequency's original launch, back in 1983 (as KRRB), Z92FM broadcast 24 hours a day.