You can get 23 free channels in ZIP 78056 (Castroville, TX)
Measured from the U.S. Census center of ZIP 78056 · 3 channels have a Strong indoor-ready signal.
Attic or High-Gain Window Antenna
You have 12 Strong/Moderate channels. An attic or 2nd-floor window antenna will lock in way more channels than a basic flat panel.
🧭 Broadcast Tower Compass — Which Way to Point Your Antenna
Each dot is a local TV tower relative to your center point (● Green = Strong, ● Blue = Moderate, ● Amber = Weak).
Primary Aim Direction: E (93°)
Place your indoor antenna near a window or exterior wall facing E (93°), or aim your attic/rooftop antenna toward that compass bearing for the strongest signal lock.
After placing or moving your antenna, always run a fresh TV channel rescan.
Channel Lineup & Tower Directions for ZIP 78056
Sorted with Strong signals and major broadcast networks first. Channel is the virtual channel number your TV displays; Band / RF Ch. is the actual radio frequency that determines whether you need a VHF-capable antenna. How we calculate signals.
| Channel | Network | Station | Distance | Point Antenna | Band / RF Ch. | Estimated Signal |
|---|---|---|---|---|---|---|
| 2 | CW | KCWX Fredericksburg, TX · Full Power | 5.7 mi | NNE (32°) | High VHF RF 8 | ● Strong — Indoor OK |
| 35 | MyNetworkTV | KMYS Kerrville, TX · Full Power | 5.7 mi | NNE (32°) | UHF RF 32 | ● Strong — Indoor OK |
| 26 | ION | KPXL-TV Uvalde, TX · Full Power | 8.4 mi | NW (311°) | UHF RF 26 | ● Strong — Indoor OK |
| 12 | ABC | KSAT-TV San Antonio, TX · Full Power | 45.2 mi | ESE (114°) | High VHF RF 12 | ● Moderate — Window / High Indoor |
| 5 | CBS | KENS San Antonio, TX · Full Power | 44.9 mi | ESE (115°) | UHF RF 29 | ● Moderate — Window / High Indoor |
| 4 | NBC | WOAI-TV San Antonio, TX · Full Power | 44.9 mi | ESE (115°) | UHF RF 28 | ● Moderate — Window / High Indoor |
| 29 | FOX | KABB San Antonio, TX · Full Power | 44.0 mi | ESE (113°) | UHF RF 30 | ● Moderate — Window / High Indoor |
| 9 | PBS | KLRN San Antonio, TX · Full Power | 38.3 mi | ESE (113°) | High VHF RF 9 | ● Moderate — Window / High Indoor |
| 17 | Univision | KNIC-DT Blanco, TX · Full Power | 28.0 mi | ENE (67°) | UHF RF 18 | ● Moderate — Window / High Indoor |
| 41 | Univision | KWEX-DT San Antonio, TX · Full Power | 44.8 mi | ESE (114°) | UHF RF 24 | ● Moderate — Window / High Indoor |
| 60 | Telemundo | KVDA San Antonio, TX · Full Power | 44.5 mi | ESE (112°) | UHF RF 15 | ● Moderate — Window / High Indoor |
| 23 | TBN | KHCE-TV San Antonio, TX · Full Power | 44.8 mi | ESE (113°) | UHF RF 16 | ● Moderate — Window / High Indoor |
| – | Local / LPTV | KVHC-LD San Antonio, TX · Low Power | 23.0 mi | ENE (76°) | High VHF RF 11 | ▲ Weak — Outdoor / Attic |
| 24 | Local / LPTV | KGMM-CD San Antonio, TX · Class A | 27.1 mi | ESE (105°) | UHF RF 36 | ▲ Weak — Outdoor / Attic |
| 7 | FOX | KTBC Austin, TX · Full Power | 87.0 mi | NE (52°) | High VHF RF 7 | ○ Fringe — Deep Outdoor |
| – | Local / LPTV | KSAA-LD San Antonio, TX · Low Power | 27.1 mi | ESE (105°) | High VHF RF 10 | ○ Fringe — Deep Outdoor |
| – | Local / LPTV | KQVE-LD San Antonio, TX · Low Power | 27.1 mi | ESE (105°) | High VHF RF 13 | ○ Fringe — Deep Outdoor |
| – | Local / LPTV | K17MJ-D San Antonio, TX · Low Power | 27.1 mi | ESE (105°) | UHF RF 17 | ○ Fringe — Deep Outdoor |
| 31 | Local / LPTV | KVDF-CD San Antonio, TX · Class A | 27.1 mi | ESE (105°) | UHF RF 31 | ○ Fringe — Deep Outdoor |
| 16 | Local / LPTV | KGSA-LD San Antonio, TX · Low Power | 27.5 mi | ESE (108°) | UHF RF 23 | ○ Fringe — Deep Outdoor |
| 34 | Local / LPTV | KCOR-CD San Antonio, TX · Class A | 28.4 mi | ESE (107°) | UHF RF 27 | ○ Fringe — Deep Outdoor |
| – | Local / LPTV | KAXX-LD San Antonio, TX · Low Power | 31.2 mi | ENE (71°) | UHF RF 35 | ○ Fringe — Deep Outdoor |
| 14 | Local / LPTV | K25OB-D San Antonio, TX · Class A | 44.8 mi | ESE (114°) | UHF RF 25 | ○ Fringe — Deep Outdoor |
Closest city guide: Castroville, TX Free TV Channels (13.6 mi from ZIP 78056 center) · Browse all Texas cities & ZIPs.
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