South Dakota / Union County

#19 of 66 SD counties · 15 structures

Cell towers in Union County, SD

The FCC registry lists 15 constructed antenna structures in Union County, 2% of South Dakota's 949. American Tower owns 6 of them (40%), so a landowner here with a tower lease is more likely than not dealing with one company. The three big tower companies — American Tower, Crown Castle and SBA — hold 6 between them.

Value a buyout offer

1234
  1. 1Constructed structures 15
  2. 2Tallest 656 ft
  3. 3Largest owner American Tower
  4. 4Median height (state 285 ft) 253 ft
Structures
15
rank 19 of 66 in SD
Most common type
Guyed tower
33% of structures
Over 200 feet
9
60% of structures
Peak build decade
1990s
40% built then

Who owns the towers in Union County

9 different registrants own the 15 structures. One is registered to an individual or family trust, whose name this site withholds. Owner names are the registrant's legal entity as filed with the FCC; the large tower companies file under many subsidiary names, which this site groups into families where the brand is in the name or listed in the company's SEC filings.

American Tower6SOUTH DAKOTA BOARD OF DIRECT2Private owners1Sioux City MSA Limited Partn1VB-S1 Assets, LLC1CommNet Cellular Inc.1Union County Public Works De1BNSF Railway1
Constructed structures in Union County by owner group, bars to scale. Source: FCC ASR, October 2026.

Height and age

The median structure here stands 253 feet, 32 feet shorter than the South Dakota median, typical of denser areas where more, shorter sites fill in coverage. The tallest is a guyed tower near Beresford at 656 feet, built in 2015. More than in any other decade, 40% were built in the 1990s.

Guyed tower5Lattice tower5Tower3Water tank1Monopole1
Structures in Union County by type, bars to scale. Source: FCC ASR.
61990s32000s52010s12020s
Structures in Union County by decade built, columns to scale. Source: FCC ASR.

Every registered structure

Sorted tallest first. The registration number opens the FCC record, which shows the exact location and the owner's contact for the structure. A tower on your land that is not in this list is probably under 200 feet and away from airports, so it did not need registering — see why some towers aren't listed.

FCC reg.TypeHeightBuiltCityOwner
1049725Guyed tower656 ft2015BeresfordSOUTH DAKOTA BOARD OF DIRECTORS FOR EDUCATIONAL TELECOMMUNICATIONS DBA ,SOUTH DAKOTA PUBLIC BROADCASTING NETWORK
1324365Guyed tower656 ft2023BeresfordSOUTH DAKOTA BOARD OF DIRECTORS FOR EDUCATIONAL TELECOMMUNICATIONS DBA ,SOUTH DAKOTA PUBLIC BROADCASTING NETWORK
1212371Guyed tower338 ft1999BeresfordAmerican Towers LLC
1212377Tower338 ft1999Elk PointAmerican Towers LLC
1212368Tower334 ft1999BreresfordAmerican Towers LLC
1212374Guyed tower334 ft1999BurbankAmerican Towers LLC
1297987Guyed tower308 ft2017Junction CityEAST RIVER ELECTRIC POWER COOPERATIVE INC
1221942Tower253 ft2001AlsenVB-S1 Assets, LLC
1050807Water tank216 ft1995North Sioux CityPrivate owner (name withheld)
1225717Lattice tower198 ft2001Dakota DunesAmerican Towers LLC
1207829Lattice tower194 ft1999Dakota DunesSioux City MSA Limited Partnership
1225715Lattice tower155 ft2001North Sioux CityAmerican Towers LLC
1289088Lattice tower140 ft2014North Sioux CityUnion County Public Works Department
1295788Lattice tower110 ft2015North Sioux CityBNSF Railway CO.
1288083Monopole109 ft2013North Sioux CityCommNet Cellular Inc.

If you have a tower lease in Union County

Find your structure above, open its FCC record and confirm the owner — that is the company your lease runs to today, even if a different carrier signed it originally. Before answering a buyout offer, put your current rent, escalator and remaining term into the calculator to see what the rent is worth and what return the offer assumes.

Counties in South Dakota with similar tower counts: Clark County (17), Jackson County (16), Lake County (16), Custer County (14), Grant County (14).

Source: FCC Antenna Structure Registration, weekly public access file (r_tower.zip, created 2026-10-18); constructed registrations only; locations rounded. Checked 2026-10-23. Methodology.