|City of license||Thornton, Colorado|
|Broadcast area||Denver-Boulder-Longmont and Northern Colorado|
|Slogan||Colorado's Progressive Talk|
|Frequency||760 kHz (also on HD Radio)|
|First air date||June 15, 1987|
|Power||50,000 watts day
1,000 watts night
|Former callsigns||KJIM (1987-1990)
Premiere Radio Networks
CBS Radio Network
|Owner||Clear Channel Communications|
|Sister stations||KBCO, KHOW, KBPI, KPTT, KOA, KRFX, KTCL|
KKZN (760 AM) is a progressive talk radio station licensed to Thornton, Colorado that serves the Denver-Boulder, Colorado market. Known as "Colorado's Progressive Talk", the station carries a number of shows from Dial Global, Premiere Radio Networks, and CBS Radio Networks. National talk hosts carried on KKZN include Bill Press, Ed Schultz, Thom Hartmann, Norman Goldman, Alan Colmes, Randi Rhodes, and Leslie Marshall.
The most popular local talk host on KKZN was David Sirota, also a newspaper columnist. In March 2009, Sirota took over the morning time slot of The Jay Marvin Show, hosted by local talk show host Jay Marvin, when Marvin was forced off the air due to ill health. Sirota moved to Clear Channel sister station KHOW in 2012, co-hosting an afternoon show with Michael Brown until Sirota's departure in January 2013. 
Besides broadcasting progressive talk shows, KKZN also runs what it calls a Blue List. This list includes companies that support progressive causes and interests. The station also sponsors progressive events throughout the Colorado Front Range, such as events for the ACLU and other progressive organizations.
The station is also the primary radio play-by-play outlet for basketball games of the men's and women's teams of the University of Colorado. These games are sometimes switched to other Clear Channel Communications stations in the Denver area owing to schedule conflicts.
The station went on the air as KJIM on June 15, 1987. On January 2, 1990, the station changed its call sign to KRZN, on December 13, 1993 to KTLK. On January 7, 2002 the station's call sign was changed to the current KKZN.
On January 21, 2010, the radio network Air America, of which KKZN was an affiliate, filed for Chapter 7 Bankruptcy, and ceased live programming the same night. Reruns of Air America's programming continued to air until Monday January 25, 2010 at 7PM Mountain Time. KKZN reduces nighttime power to protect the signals of the dominant stations on 760 AM.
- Official KKZN Website
- Query the FCC's AM station database for KKZN
- Radio-Locator Information on KKZN
- Query Nielsen Audio's AM station database for KKZN