Castle Rock, CO antenna channel guide

Castle Rock viewers can receive 24 full-power and Class A stations, plus their subchannels and 12 low-power stations, but most need an attic or outdoor antenna to get them all. The main network towers stand 28 to 32 miles northwest of central Castle Rock.

Free channels
26
Miles to main towers
33
Aim direction
NW

FCC data, Nov 6, 2026 · Signal tiers estimated without terrain

Main networks in Castle Rock

All six main networks reach Castle Rock over the air. Tune to these channels after a scan.

ABC

7.1

KMGH-TV · 32 mi NW

Moderate

CBS

4.1

KCNC-TV · 32 mi NW

Moderate

NBC

20.1

KTVD · 32 mi NW

Moderate

FOX

31.1

KDVR · 32 mi NW

Moderate

PBS

6.1

KRMA-TV · 28 mi NW

Strong

The CW

2.1

KWGN-TV · 32 mi NW

Moderate

Lost a channel?

No network has changed stations in the Denver area in the past two years. If a channel goes missing, a rescan usually brings it back.

Rescan in 3 steps

  1. Open your TV's settings.
  2. Find the channel, broadcast or antenna section.
  3. Run "auto scan" or "channel scan" with the input set to Antenna or Air.

Is the station hard to receive here?

K12XK-D (channel 30.1), K19MN-D (channel 13.1), K28GE-D (channel 21.1), plus 14 more, are weak in Castle Rock; they may come and go. If a weak station is the one you're missing, these steps can help.

Recommended for Castle Rock

Plan on an attic or outdoor antenna in Castle Rock

Antenna type: Attic or outdoor, with VHF reception.

KMGH-TV (ABC, channel 7.1) broadcasts on VHF, so choose an antenna rated for VHF as well as UHF.

KUSA (NBC, channel 9.1) broadcasts on VHF, so choose an antenna rated for VHF as well as UHF.

How to choose an antenna for VHF channels

  • The farthest main network, The CW (KWGN-TV), is 32 miles away
  • ABC, CBS, NBC, FOX and The CW are rated Moderate, so placement matters
  • The main towers sit northwest, so one aim works

Do you need an amplifier?

An amplifier, ideally a preamplifier mounted near the antenna, can help with the farther stations, such as KDVR at 32 miles.

Splitting the signal to more TVs weakens it at each one. With 2 or more TVs, a powered distribution amplifier keeps every TV's signal strong. One antenna, several TVs

All stations

Station data from the FCC, as of

36 stations reach Castle Rock at a Strong or Moderate signal. Full-power and Class A stations are listed first, then low-power stations. 10 of them have no published channel number yet, so they show their RF channel; your TV may list them under a different number after a scan.

ChannelStationNetworkDistanceSignal
2.1 KWGN-TV The CW source 32 mi NW Moderate
4.1 KCNC-TV CBS source 32 mi NW Moderate
5.1 KOAA-TV NBC source 44 mi S Moderate
6.1 KRMA-TV PBS source 28 mi NW Strong
7.1 VHF KMGH-TV ABC source 32 mi NW Moderate
8.1 VHF KTSC PBS source 44 mi S Moderate
9.1 VHF KUSA NBC source 32 mi NW Moderate
10.1 KSBS-CD Independent / ABC source 32 mi NW Moderate
11.1 KKTV CBS source 44 mi S Moderate
12.1 VHF KBDI-TV PBS source 40 mi WNW Moderate
13.1 KRDO-TV ABC source 44 mi S Moderate
14.1 KCEC Univision sourceEn español: 14.1 Univision 28 mi NW Strong
20.1 KTVD Independent / MyNetworkTV / NBC source 32 mi NW Moderate
21.1 KXRM-TV FOX / The CW source 44 mi S Moderate
25.1 KDEN-TV Telemundo / NBC sourceEn español: 25.1 Telemundo, 25.2 TeleXitos 50 mi N Moderate
31.1 KDVR FOX 32 mi NW Moderate
38.1 KPJR-TV TBN source 50 mi N Moderate
41.1 KRMT Daystar source 25 mi NW Strong
48.1 KVSN-DT Univision sourceEn español: 48.1 Univision 44 mi S Moderate
50.1 KTFD-TV UniMás sourceEn español: 50.1 UniMás 32 mi NW Moderate
53.1 KETD Estrella TV sourceEn español: 53.1 Estrella TV, 53.2 Estrella News 28 mi NW Strong
59.1 KPXC-TV Ion source 50 mi N Moderate
RF 4 Low VHF KVAI-CD Not listed 32 mi NW Moderate
RF 16 KQDK-CD Not listed 32 mi NW Moderate
Low-power stations (12)
5.1 K30JM-D NBC source 44 mi S Moderate
18.1 KZCS-LD NBC source 44 mi S Moderate
24.1 VHF KHDT-LD Not listed 32 mi NW Moderate
35.1 Low VHF KPDD-LD Not listed 32 mi NW Moderate
RF 2 Low VHF KBRO-LD Not listed 32 mi NW Moderate
RF 5 Low VHF K05MD-D Not listed 10 mi W Strong
RF 6 Low VHF KXDP-LD Not listed 44 mi NNW Moderate
RF 10 VHF KWHS-LD Not listed 44 mi S Moderate
RF 14 KZDN-LD Not listed 32 mi NW Moderate
RF 20 KDNF-LD Not listed 25 mi NW Strong
RF 30 KLPD-LD Not listed 32 mi NW Moderate
RF 30 KZCO-LD ABC source 32 mi NW Moderate

Broadcasts on VHF (RF channels 2 to 13). Many flat indoor antennas pick up VHF poorly. RF channels 2 to 6 need a larger antenna. VHF antenna guide

Strong: inside the station's FCC coverage area, tower within 30 miles. Moderate: inside the coverage area, tower farther away. Weak: outside it, tower within 60 miles. How we rate signals

Network and subchannel details are adapted from Wikipedia, available under CC BY-SA 4.0. The "source" link in each row opens the station's article.

Weak signals: 17 more stations that may need an outdoor antenna

These towers are outside the FCC coverage area for Castle Rock but within 60 miles. Reception depends on terrain and antenna height.

ChannelStationNetworkDistanceSignal
12.1 K17OE-D PBS source 33 mi S Weak
12.1 K22NW-D Translator PBS source 45 mi NNW Weak
13.1 K19MN-D Translator ABC source 29 mi SSW Weak
13.1 K36JB-D Translator ABC source 47 mi SSW Weak
21.1 K28GE-D FOX / The CW source 29 mi SSW Weak
30.1 VHF K12XK-D Not listed 25 mi NW Weak
30.1 VHF K11XJ-D Not listed 33 mi S Weak
46.1 KTLO-LD Telemundo source 38 mi S Weak
57.1 KXTU-LD The CW source 44 mi S Weak
RF 7 VHF K07PA-D Translator PBS source 36 mi S Weak
RF 9 VHF KTNP-LD Not listed 33 mi S Weak
RF 14 KJCS-LD Not listed 42 mi S Weak
RF 21 KDEO-LD Not listed 32 mi NW Weak
RF 23 KDDI-LD Not listed 40 mi WNW Weak
RF 24 K24HQ-D Translator PBS source 45 mi NNW Weak
RF 27 KAVC-LD Not listed 45 mi NNW Weak
RF 29 K29HM-D Translator PBS source 42 mi WSW Weak

Extra channels you also get

Stations above also broadcast these 61 subchannels. They come free with the same antenna after a channel scan.

  • 4.2Start TV
  • 4.3Dabl
  • 4.5Catchy Comedy
  • 4.6Story Television
  • 5.2Court TV
  • 5.3Grit
  • 5.4Ion
  • 5.5Busted
  • 5.6Shop LC
  • 5.7HSN2
  • 5.8Laff
  • 7.2Ion Mystery
  • 7.3Laff
  • 9.2Cozi TV
  • 9.3True Crime Network
  • 9.5Quest
  • 9.6The Nest
  • 11.2MeTV & MyNetworkTV
  • 11.3Outlaw
  • 12.2PBS 12 Plus (4 a.m.–4 p.m.) FNX (4 p.m.–4 a.m.)
  • 12.3Deutsche Welle (4:3)
  • 12.4NHK World
  • 13.3Newscast replays
  • 13.4Dabl
  • 13.5QVC
  • 13.6HSN
  • 13.7Heroes & Icons
  • 14.2MovieSphere Gold
  • 14.3Great (4:3)
  • 14.4Infomercials
  • 14.5Shop LC
  • 18.2Bounce TV
  • 18.3Defy
  • 18.4Game Show Central
  • 18.5QVC2
  • 20.2Heroes & Icons
  • 20.3Shop LC
  • 20.4Quest → Outlaw (soon)
  • 21.3Quest
  • 21.4Antenna TV
  • 25.2TeleXitos (4:3)
  • 25.3Cozi TV
  • 25.4NBC True CRMZ
  • 25.5Oxygen (4:3)
  • 25.6Nosey
  • 48.3LATV
  • 48.5True Crime Network
  • 48.88AltaVision
  • 50.2LATV
  • 50.88AltaVision
  • 53.2Estrella News
  • 53.3Confess
  • 53.4ShopHQ
  • 53.5Buzzr
  • 59.2Bounce TV
  • 59.3Court TV
  • 59.4Ion Plus
  • 59.5Busted
  • 59.6Defy
  • 59.7Game Show Central
  • 59.8MeTV Toons

Spanish-language channels in Castle Rock

Canales en español

7 Spanish-language channels reach Castle Rock at a Strong or Moderate signal. They come with the same antenna after a channel scan.

ChannelNetworkStationSignal
14.1 Univision KCEC Strong
25.1 Telemundo KDEN-TV Moderate
25.2 TeleXitos KDEN-TV Moderate
48.1 Univision KVSN-DT Moderate
50.1 UniMás KTFD-TV Moderate
53.1 Estrella TV KETD Strong
53.2 Estrella News KETD Strong

Where to point your antenna

Aim northwest (307°). Rings at 5, 10 and 30 miles from central Castle Rock; dots are Strong-signal towers.

5 mi 10 mi 30 mi N E S W KRMA-TV +2 KDNF-LD +1 K05MD-D
  • KRMA-TV and 4 other stations: 25 to 28 miles northwest
  • K05MD-D: 10 miles west

Placement and interference tips

  • Place the antenna on a northwest-facing window or wall. Higher is better.
  • The farthest main network tower is 32 miles away, so an attic or outdoor antenna will do better than one inside the living space. Attic antenna guide
  • LED bulbs, especially older or cheaper ones, can interfere. If reception gets worse when the lights are on, that's the cause.
  • Living near a cell tower? An LTE filter can block the interference.
  • Trees and hills block signals (Cord Cutters News covers these and the LED and cell tower problems), and so do metal roofs and foil radiant barriers in attics (Solid Signal). Move the antenna away from them if you can.

NextGen TV in Castle Rock

NextGen TV (ATSC 3.0) is on the air in Castle Rock, broadcast from K30JM-D, KHDT-LD and KWGN-TV. Any antenna receives it.

  • Your current TV keeps working. Today's broadcasts continue alongside NextGen TV: full-power stations that switch must keep simulcasting their main channel in today's format (CommLawCenter).
  • You need an ATSC 3.0 tuner to watch it. That means a TV or tuner box with one built in. Most TVs don't have one (PCWorld).
  • Some channels are encrypted. Some broadcasters encrypt their NextGen TV channels, and some tuners and DVRs can't play encrypted channels yet. HDHomeRun devices are one example (Antenna Land). Check before you buy, especially a DVR.
  • No shutoff date yet. Broadcasters have asked the FCC to end today's broadcasts in large markets around 2028 and everywhere around 2030. The FCC hasn't set a date (PCWorld).

Castle Rock antenna questions

What channel is CBS in Castle Rock?

CBS is channel 4.1 (KCNC-TV) on an antenna in Castle Rock. The tower is 32 miles northwest and the signal is rated Moderate.

What channel is ABC in Castle Rock?

ABC is channel 7.1 (KMGH-TV) on an antenna in Castle Rock. The tower is 32 miles northwest and the signal is rated Moderate.

What channels are NBC, FOX, PBS and The CW in Castle Rock?

NBC is 20.1 (KTVD), FOX is 31.1 (KDVR), PBS is 6.1 (KRMA-TV) and The CW is 2.1 (KWGN-TV).

Which way should I point my antenna in Castle Rock?

Point it northwest (307 degrees). The main network towers are 28 to 32 miles northwest of central Castle Rock.

Do I need an outdoor antenna in Castle Rock?

Most homes should plan on one. The farthest main network tower is 32 miles from central Castle Rock, and some main stations are rated Moderate. An attic antenna can work if the roof isn't metal.

Nearby cities

Other Denver-area cities with channel guides, nearest first.

Station and tower data: FCC, Nov 6, 2026. Network and subchannel data: Wikipedia, CC BY-SA 4.0. Signal tiers are estimates from FCC coverage areas and distance, without terrain modeling. How we estimate signals.