Antenna structures in Custer County, Idaho
At a glance
Custer County, Idaho has 12 FCC-registered antenna structures, 6 of them marked constructed. That is the 34th-largest count among the 44 Idaho counties with registrations, and 0.88% of the state's 1,364. The tallest constructed structure in the county is registration 1031740 near Darlington at 70 m (229 ft).
Dataset updated . Refreshed from the FCC ASR weekly bulk database.
How does Custer County compare with the rest of Idaho?
With 12 registrations, Custer County ranks 34th of 44 counties in Idaho; Ada County leads the state with 138. The average registered overall height here is 32 m, about 32% below the Idaho average of 47 m. The tallest standing structure, at 70 m, is about twice the county average.
What kinds of structures are registered in Custer County?
The most common filed structure type in Custer County is tower (code TOWER), with 8 registrations (66.7%). It is followed by lattice tower (2) and pole (1). In all, 4 different FCC structure-type codes appear in the county.
By registration status: 6 constructed, 3 canceled, 2 terminated and 1 granted (not yet constructed). Only constructed registrations describe structures the registry treats as standing; canceled, dismantled and terminated records stay listed as history.
Who owns the towers in Custer County?
CCATT LLC holds the most registrations in Custer County, with 3 of the 12. The next largest are Custer Telephone Cooperative, Inc. (2), EDGE WIRELESS, LLC (2) and AT&T Mobility Spectrum LLC (1). 7 owners with two or more registrations nationwide hold structures in the county.
Which places in Custer County have registered structures?
Registrations in Custer County list 4 different city or place names. The most frequent are Mackay (5), Challis (3), Darlington (2) and Stanley (2).
Every registration
All 12 structures in Custer County, tallest first
| # | Structure | Height | Type | Status |
|---|---|---|---|---|
| 1 | Darlington · 1031740 | 70 m | Tower (type not specified) | Constructed |
| 2 | Darlington · 1255803 | 48 m | Tower (type not specified) | Terminated |
| 3 | Challis · 1259318 | 47 m | Tower (type not specified) | Constructed |
| 4 | Challis · 1231036 | 43 m | Tower (type not specified) | Canceled |
| 5 | Mackay · 1256419 | 38 m | Tower (type not specified) | Constructed |
| 6 | Challis · 1278838 | 35 m | Tower (type not specified) | Constructed |
| 7 | Mackay · 1279641 | 26 m | Lattice tower | Constructed |
| 8 | Mackay · 1220488 | 22 m | Lattice tower | Constructed |
| 9 | Stanley · 1016689 | 18 m | Pole | Canceled |
| 10 | Mackay · 1278857 | 15 m | Tower (type not specified) | Canceled |
| 11 | Mackay · 1205209 | 12 m | Tower (type not specified) | Granted (not yet constructed) |
| 12 | Stanley · 1259317 | 10 m | Building with antenna | Terminated |
Frequently asked questions
How many cell towers are in Custer County, ID?
The FCC Antenna Structure Registration database lists 12 registered antenna structures in Custer County, Idaho, 6 of them constructed. Registration is generally required only for structures taller than about 60 m or near airports, so shorter cell sites may not appear.
What is the tallest tower in Custer County?
The tallest constructed registered structure in Custer County is registration 1031740, a tower near Darlington at 70 m (229 ft) overall height.
Who owns the most towers in Custer County?
CCATT LLC holds the most registrations in Custer County (3), followed by Custer Telephone Cooperative, Inc. (2).
What kind of towers are in Custer County?
Tower (type not specified) is the most common filed type (8 of 12 registrations), then lattice tower (2).
More in Idaho
About this data
Source: FCC Antenna Structure Registration (ASR) database, as published October 13, 2026 — TowerCensus refreshes it weekly. See the methodology for how records are matched, cleaned and scored.
Cite as: TowerCensus, “Antenna structures in Custer County, Idaho”, https://towercensus.com/towers/idaho/county/custer-county (data as of October 13, 2026).