Cell towers in Longmont, Colorado
The FCC register lists 10 antenna structures in and around Longmont. That is the 35th highest count of any place in Colorado.
Overview
The FCC register lists 10 antenna structures in and around Longmont, CO. That is the 35th highest count of any place in Colorado.
Counted against 100,109 residents, that is 10 per 100,000 — worth reading alongside area density, since structures cluster along roads and ridgelines rather than where people sleep.
Heights are uneven: the median is 34 m (112 ft) but the tallest is 91 m (299 ft), roughly 2.7 times that — usually the signature of a broadcast mast among shorter mobile sites.
The mix here is 5 lattice towers, 1 guyed mast — the rest of the register is made up of rooftops, water tanks and structures the FCC records without a specific type.
The most recent registration on file here dates from 2013.
Structure types
| Lattice tower | 5 | 50% |
| Tower | 3 | 30% |
| Guyed tower | 1 | 10% |
| Building with tower | 1 | 10% |
Largest registered owners
owner is not the same as carrier| American Towers LLC Tower company | 4 | 40% |
| T-mobile West Tower LLC Carrier | 2 | 20% |
| Weld County Government Other | 1 | 10% |
| Ctl Other | 1 | 10% |
| Sba Towers Vi, LLC Tower company | 1 | 10% |
Tallest registered structures
| Height | Type | Built | Owner | ASR |
|---|---|---|---|---|
| 91 m (299 ft) | Lattice tower | 2013 | Weld County Government | 2685427 |
| 61 m (200 ft) | Lattice tower | 1999 | American Towers LLC | 2624827 |
| 60 m (197 ft) | Guyed tower | 1991 | American Towers LLC | 2692101 |
| 59 m (193 ft) | Lattice tower | 2003 | American Towers LLC | 2626503 |
| 36 m (119 ft) | Building with tower | 1980 | Ctl | 2699509 |
| 32 m (105 ft) | Tower | 2002 | T-mobile West Tower LLC | 2612121 |
| 29 m (94 ft) | Tower | 2005 | T-mobile West Tower LLC | 2628170 |
| 21 m (70 ft) | Lattice tower | 2012 | Sba Towers Vi, LLC | 2683218 |
| 14 m (45 ft) | Tower | 2004 | Sba 2012 Tc Assets, LLC | 2668927 |
| 13 m (41 ft) | Lattice tower | 1991 | American Towers LLC | 2692102 |
When they were registered
| 1980s | 1 | 10% |
| 1990s | 3 | 30% |
| 2000s | 4 | 40% |
| 2010s | 2 | 20% |
Nearby places
- Erie 5
- Boulder 18
- Broomfield 17
- Fort Lupton 10
- Loveland 10
About this data
Source is the FCC Antenna Structure Registration file of 2026-08-23. What it records is structures, not the radios mounted on them: the register cannot tell you which carrier operates from a given site.
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.