Castle Rock is part of the Denver radio and television market. Radio station KJMN is licensed to Castle Rock, but broadcasts from Denver playing a Spanish Adult Hits format on 92.1 FM. Denver radio station 850 KOA, which broadcasts a news/talk and sports format, operates its 50,000 watt transmitter from a site 10 miles northeast of downtown Castle Rock, in the town of Parker. Another Denver station, KEZW "EZ 1430", a CNN affiliate with a nostalgia music format, operates its transmitter from Highlands Ranch, 13 miles north of downtown Castle Rock.