KIMN (100.3 FM), branded “Mix 100,” is a commercial hot adult contemporary radio station licensed to Denver, Colorado. It serves the Denver metropolitan area and is owned by KSE Radio Ventures, a division of Kroenke Sports & Entertainment. The station broadcasts at an effective radiated power of 98,600 watts (100,000 watts with beam tilt) from Mount Morrison. Its current website is mix100.com.
History
The 100.3 FM facility signed on July 9, 1959, as KLIR-FM, the FM counterpart to KLIR 990 AM. It initially simulcast the AM station before moving to beautiful music and middle-of-the-road programming. In 1984, it became KMJI and adopted the “Majic 100” identity. After using KXLT (“K-Lite 100”) from 1989 to 1992, it returned to the KMJI calls and Majic branding.
The station adopted the KIMN calls in April 1995, borrowing a name long associated with Denver’s former 950 AM Top 40 station. It moved through 1970s hits and adult contemporary formats before adopting the “Mix 100” brand and hot adult contemporary format in 1999. In 2014, KIMN briefly shifted toward adult Top 40, then returned to hot adult contemporary in 2016.
Ownership
• 1959–1999: Ownership changed during the KLIR-FM, KMJI, KXLT and early KIMN eras; a complete dated ownership sequence is not established in the sources consulted.
• 1999–August 2000: Chancellor Media.
• August 2000–March 2009: Infinity Broadcasting, later CBS Radio.
• March 2009–December 31, 2015: Wilks Broadcasting.
• December 31, 2015–present: KSE Radio Ventures, part of Kroenke Sports & Entertainment.
Technical information
• Frequency: 100.3 MHz.
• Effective radiated power: 98,600 watts (100,000 watts with beam tilt).
• Height above average terrain: 345 metres.
• Facility ID: 59597.
• Current format: Hot adult contemporary.
• Current station website: Mix 100.
Studio locations
• Former 100.3 FM studio: Glendale, Colorado; the street address and dates of use have not been confirmed in the sources consulted. This FM facility is distinct from the former KIMN 950 AM studios in Edgewater.
• Current station office: 8467 South Yosemite Street, Lone Tree, Colorado 80124.
Sources: Wikipedia, “KIMN”; Mix 100, official contact page; Colorado Music Hall of Fame, “KIMN Radio”.
2024 CBA Awards: Awards of Excellence: Best On-Air Contest, “Mix 100 Holiday Hot Tub”; Best Morning Show and Best Station Personality, “Jeremy, Katy & Josh”; and Best Afternoon Show, “Mix 100 Afternoons with Nina Blanco.” Certificates of Merit: Best Community Service Campaign, “Mix 100 Jeremy Pint for Pint Blood Drive” (Jeremy Padgett); Best Radio Commercial, “Terry Bison Ranch Choo-Choo” (Steve Cassidy). Official CBA 2024 results.
Sources
• Wikipedia, “KIMN” — facility, call-sign, format and ownership history, with references to trade publications and news sources.
• Federal Communications Commission, Facility 59597 technical information — licensed power, facility and antenna records.
• Mix 100, official station website.
Awards & Recognitions
Documented awards, honors, and finalist or nomination recognition associated with this station or broadcaster.
- 2025Award of ExcellenceColorado Broadcasters AssociationBest Afternoon ShowNina Blanco2025 Metro Market Radio results
- 2025Award of ExcellenceColorado Broadcasters AssociationBest Evening ShowSinna-G2025 Metro Market Radio results
- 2025Certificate of MeritColorado Broadcasters AssociationBest Station Imaging CampaignMix 100 Official Summer Station — Big Rob, Markie Lindemulder2025 Metro Market Radio results
- 2025Certificate of MeritColorado Broadcasters AssociationBest Station Promotion/Marketing CampaignMix 100’s All-Access Summer — Markie Lindemulder, Big Rob2025 Metro Market Radio results
- 2025Certificate of MeritColorado Broadcasters AssociationBest Station PersonalityNina Blanco2025 Metro Market Radio results
- 2024Award of ExcellenceColorado Broadcasters AssociationBest On-Air Contest for a StationMix 100 Holiday Hot Tub2024 Metro Market Radio results
- 2024Award of ExcellenceColorado Broadcasters AssociationBest Morning ShowJeremy, Katy & Josh2024 Metro Market Radio results
- 2024Award of ExcellenceColorado Broadcasters AssociationBest Afternoon ShowMix 100 Afternoons with Nina Blanco2024 Metro Market Radio results
- 2024Award of ExcellenceColorado Broadcasters AssociationBest Station PersonalityJeremy, Katy & Josh2024 Metro Market Radio results
- 2024Certificate of MeritColorado Broadcasters AssociationBest Community Service CampaignMix 100 Jeremy Pint for Pint Blood Drive — Jeremy Padgett2024 Metro Market Radio results
- 2024Certificate of MeritColorado Broadcasters AssociationBest Radio Commercial for an AdvertiserTerry Bison Ranch Choo-Choo — Steve Cassidy2024 Metro Market Radio results
FROM THE TIMELINE
Moments in KIMN-FM History
KLIR-FM signs on at 100.3
KLIR-FM signed on July 9, 1959 at 100.3 FM as the companion to KLIR 990. The station began at 8,800 watts under George Basil Anderson and initially simulcast its AM sister before developing separate FM programming.
Clear Channel–AMFM merger forces major Denver radio divestitures
The U.S. Justice Department required a large package of station sales before approving Clear Channel’s merger with AMFM in 2000. In Denver-Boulder, the divestiture list included KXPK-FM to Emmis; KDJM-FM, KIMN-FM and KXKL-FM to CBS; KALC-FM to Salem; and KVOD-AM to a buyer to be determined.
Kroenke Sports & Entertainment buys Wilks Denver cluster
On October 12, 2015, Kroenke Sports & Entertainment announced an agreement to acquire Wilks Broadcasting’s Denver cluster: KXKL 105.1, KIMN 100.3 and KWOF 92.5. The transaction closed December 31, 2015 for $54 million.
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