Antenna structures in Dewey County, South Dakota
At a glance
Dewey County, South Dakota has 17 FCC-registered antenna structures, 12 of them marked constructed. That is the 22nd-largest count among the 66 South Dakota counties with registrations, and 1.3% of the state's 1,289. The tallest constructed structure in the county is registration 1304164 near Eagle Butte at 199 m (653 ft).
Dataset updated . Refreshed from the FCC ASR weekly bulk database.
How does Dewey County compare with the rest of South Dakota?
With 17 registrations, Dewey County ranks 22nd of 66 counties in South Dakota; Minnehaha County leads the state with 116. The average registered overall height here is 90 m, roughly in line with the South Dakota average of 84 m. The tallest standing structure, at 199 m, is about 2.2 times the county average.
What kinds of structures are registered in Dewey County?
The most common filed structure type in Dewey County is guyed tower (code GTOWER), with 9 registrations (52.9%). It is followed by tower (4) and lattice tower (3). In all, 4 different FCC structure-type codes appear in the county.
By registration status: 12 constructed, 2 granted (not yet constructed), 2 canceled and 1 dismantled. Only constructed registrations describe structures the registry treats as standing; canceled, dismantled and terminated records stay listed as history.
Who owns the towers in Dewey County?
MOREAU GRAND ELECTRIC COOPERATIVE, INC. holds the most registrations in Dewey County, with 3 of the 17. The next largest are BIT/State Radio Communications Engineering (2), American Towers LLC (1) and AT&T Mobility Spectrum LLC (1). 10 owners with two or more registrations nationwide hold structures in the county.
Which places in Dewey County have registered structures?
Registrations in Dewey County list 7 different city or place names. The most frequent are Timber Lake (4), Eagle Butte (3), Isabel (3), La Plant (2) and Firesteel (2).
Every registration
All 17 structures in Dewey County, tallest first
| # | Structure | Height | Type | Status |
|---|---|---|---|---|
| 1 | Eagle Butte · 1304164 | 199 m | Guyed tower | Constructed |
| 2 | Eagle Butte · 1011932 | 148 m | Guyed tower | Constructed |
| 3 | La Plant · 1310657 | 122 m | Guyed tower | Canceled |
| 4 | Firesteel · 1052817 | 101 m | Tower (type not specified) | Dismantled |
| 5 | Isabel · 1267082 | 101 m | Guyed tower | Constructed |
| 6 | Ridgeview · 1334303 | 99 m | Guyed tower | Canceled |
| 7 | Eagle Butte · 1285370 | 96 m | Lattice tower | Constructed |
| 8 | Timberlake · 1279260 | 95 m | Lattice tower | Granted (not yet constructed) |
| 9 | Timber Lake · 1328975 | 95 m | Guyed tower | Constructed |
| 10 | La Plant · 1063503 | 92 m | Tower (type not specified) | Constructed |
| 11 | Ridgeview · 1041184 | 91 m | Guyed tower | Constructed |
| 12 | Firesteel · 1046196 | 80 m | Lattice tower | Constructed |
| 13 | Isabel · 1041183 | 76 m | Guyed tower | Constructed |
| 14 | Timber Lake · 1284727 | 59 m | Tower (type not specified) | Constructed |
| 15 | Isabel · 1286190 | 37 m | Guyed tower | Constructed |
| 16 | Timber Lake · 1275038 | 24 m | Tower (type not specified) | Constructed |
| 17 | Timber Lake · 1256119 | 21 m | Utility pole | Granted (not yet constructed) |
Frequently asked questions
How many cell towers are in Dewey County, SD?
The FCC Antenna Structure Registration database lists 17 registered antenna structures in Dewey County, South Dakota, 12 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 Dewey County?
The tallest constructed registered structure in Dewey County is registration 1304164, a guyed tower near Eagle Butte at 199 m (653 ft) overall height.
Who owns the most towers in Dewey County?
MOREAU GRAND ELECTRIC COOPERATIVE, INC. holds the most registrations in Dewey County (3), followed by BIT/State Radio Communications Engineering (2).
What kind of towers are in Dewey County?
Guyed tower is the most common filed type (9 of 17 registrations), then tower (4).
More in South Dakota
About this data
Source: FCC Antenna Structure Registration (ASR) database, as published October 20, 2026 — TowerCensus refreshes it weekly. See the methodology for how records are matched, cleaned and scored.
Cite as: TowerCensus, “Antenna structures in Dewey County, South Dakota”, https://towercensus.com/towers/south-dakota/county/dewey-county (data as of October 20, 2026).