Cell towers in San Marcos, California
The FCC register lists 8 antenna structures in and around San Marcos. That is the 192nd highest count of any place in California.
Overview
San Marcos, CA has 8 registered antenna structures on the FCC register — the 192nd largest count among the 801 places in California that have any.
Area density is 0.33 per square mile — usually the more telling figure for infrastructure that follows terrain, roads and line of sight rather than population.
At a median of 16 m (53 ft), structures here run 30.9% shorter than the California median of 24 m (77 ft).
American Towers LLC holds more registrations here than any other entity, at 2 of 8.
The oldest structure on file here was registered in 1986, the newest in 2021 — 35 years of build-out visible in one register.
Structure types
| Pole | 4 | 50% |
| Tower array | 2 | 25% |
| Tower | 1 | 13% |
| Lattice tower | 1 | 13% |
Largest registered owners
owner is not the same as carrier| New Inspiration Broadcasting CO., INC. Broadcaster | 2 | 25% |
| Cellco Partnership Carrier | 2 | 25% |
| American Towers LLC Tower company | 2 | 25% |
| Cricket Communications, INC. Other | 1 | 13% |
| Stc One LLC Tower company | 1 | 13% |
Tallest registered structures
| Height | Type | Built | Owner | ASR |
|---|---|---|---|---|
| 60 m (198 ft) | Tower array | 1986 | New Inspiration Broadcasting CO., INC. | 605340 |
| 60 m (198 ft) | Tower array | 1986 | New Inspiration Broadcasting CO., INC. | 605341 |
| 46 m (150 ft) | Lattice tower | 1992 | American Towers LLC | 621405 |
| 19 m (61 ft) | Pole | 2020 | Cellco Partnership | 2703777 |
| 14 m (46 ft) | Pole | 2000 | American Towers LLC | 2699636 |
| 13 m (43 ft) | Pole | 2021 | Cellco Partnership | 2706693 |
| 11 m (35 ft) | Pole | 2003 | Stc One LLC | 2638563 |
| 8.2 m (27 ft) | Tower | 2007 | Cricket Communications, INC. | 2652224 |
When they were registered
| 1980s | 2 | 25% |
| 1990s | 1 | 13% |
| 2000s | 3 | 38% |
| 2020s | 2 | 25% |
Nearby places
- Vista 12
- Carlsbad 8
- Oceanside 28
- Camp Pendleton South 6
- Camp Pendleton Mainside 13
About this data
Counts here are computed from the FCC's registered structure file, dated 2026-08-23. If a mast near you is missing, the usual reason is that it sits below the 200-foot registration threshold.
The FCC Antenna Structure Registration database covers structures that require registration — generally those over 200 feet or near airports. Many small cells, rooftop antennas and short towers are not registered and will not appear here.
"Owner" is the entity that registered the structure, usually a tower company such as American Tower or Crown Castle. It does not indicate which carriers operate equipment on the structure.