Antenna structures in Mercer County, Illinois
At a glance
Mercer County, Illinois has 35 FCC-registered antenna structures, 30 of them marked constructed. That is the 61st-largest count among the 102 Illinois counties with registrations, and 0.49% of the state's 7,110. The tallest constructed structure in the county is registration 1222627 near Seaton at 427 m (1,400 ft).
Dataset updated . Refreshed from the FCC ASR weekly bulk database.
How does Mercer County compare with the rest of Illinois?
With 35 registrations, Mercer County ranks 61st of 102 counties in Illinois; Cook County leads the state with 965. The average registered overall height here is 94 m, about 36% above the Illinois average of 69 m. The tallest standing structure, at 427 m, is about 4.6 times the county average.
What kinds of structures are registered in Mercer County?
The most common filed structure type in Mercer County is guyed tower (code GTOWER), with 13 registrations (37.1%). It is followed by lattice tower (13) and tower (6). In all, 5 different FCC structure-type codes appear in the county.
By registration status: 30 constructed, 3 canceled and 2 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 Mercer County?
American Towers LLC holds the most registrations in Mercer County, with 10 of the 35. The next largest are ARRAY DIGITAL INFRASTRUCTURE, INC. (5), Cellco Partnership (5) and SBA Towers IX, LLC (2). 14 owners with two or more registrations nationwide hold structures in the county.
Which places in Mercer County have registered structures?
Registrations in Mercer County list 13 different city or place names. The most frequent are Aledo (12), Alexis (4), Joy (3), New Boston (3) and Viola (3).
Every registration
All 35 structures in Mercer County, tallest first
| # | Structure | Height | Type | Status |
|---|---|---|---|---|
| 1 | Seaton · 1222627 | 427 m | Guyed tower | Constructed |
| 2 | Aledo · 1237754 | 132 m | Tower (type not specified) | Canceled |
| 3 | Aledo · 1008749 | 129 m | Guyed tower | Constructed |
| 4 | Aledo · 1240123 | 128 m | Guyed tower | Constructed |
| 5 | Hamlet · 1009505 | 109 m | Guyed tower | Constructed |
| 6 | Joy · 1044526 | 105 m | Guyed tower | Constructed |
| 7 | New Boston · 1209886 | 102 m | Guyed tower | Constructed |
| 8 | Aledo · 1008883 | 101 m | Guyed tower | Constructed |
| 9 | Sherrard · 1307984 | 96 m | Guyed tower | Constructed |
| 10 | Aledo · 1268978 | 94 m | Guyed tower | Constructed |
| 11 | Matherville · 1257237 | 92 m | Tower (type not specified) | Dismantled |
| 12 | Aledo · 1007056 | 91 m | Guyed tower | Constructed |
| 13 | New Boston · 1008638 | 90 m | Tower (type not specified) | Constructed |
| 14 | Aledo · 1008713 | 81 m | Unspecified structure | Dismantled |
| 15 | Viola · 1236972 | 81 m | Lattice tower | Constructed |
| 16 | Alexis · 1325801 | 81 m | Lattice tower | Canceled |
| 17 | Alexis · 1246216 | 79 m | Lattice tower | Constructed |
| 18 | Joy · 1291918 | 79 m | Lattice tower | Constructed |
| 19 | Viola · 1263702 | 79 m | Lattice tower | Constructed |
| 20 | Alexis · 1331117 | 79 m | Lattice tower | Constructed |
| 21 | Sherrard · 1263999 | 79 m | Lattice tower | Constructed |
| 22 | Henderson · 1267778 | 78 m | Tower (type not specified) | Constructed |
| 23 | Mercer · 1274405 | 78 m | Mast | Canceled |
| 24 | Hamlet · 1312589 | 78 m | Lattice tower | Constructed |
| 25 | Aledo · 1284877 | 77 m | Lattice tower | Constructed |
| 26 | Viola · 1308410 | 74 m | Lattice tower | Constructed |
| 27 | Aledo · 1200487 | 73 m | Tower (type not specified) | Constructed |
| 28 | Aledo · 1266726 | 71 m | Lattice tower | Constructed |
| 29 | Keithsburg · 1270121 | 66 m | Guyed tower | Constructed |
| 30 | New Windsor · 1270737 | 61 m | Guyed tower | Constructed |
| 31 | Alexis · 1271081 | 60 m | Guyed tower | Constructed |
| 32 | New Boston · 1269685 | 59 m | Lattice tower | Constructed |
| 33 | Joy · 1270736 | 59 m | Lattice tower | Constructed |
| 34 | Aledo · 1265386 | 59 m | Tower (type not specified) | Constructed |
| 35 | Aledo · 1271751 | 49 m | Monopole | Constructed |
Frequently asked questions
How many cell towers are in Mercer County, IL?
The FCC Antenna Structure Registration database lists 35 registered antenna structures in Mercer County, Illinois, 30 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 Mercer County?
The tallest constructed registered structure in Mercer County is registration 1222627, a guyed tower near Seaton at 427 m (1,400 ft) overall height.
Who owns the most towers in Mercer County?
American Towers LLC holds the most registrations in Mercer County (10), followed by ARRAY DIGITAL INFRASTRUCTURE, INC. (5).
What kind of towers are in Mercer County?
Guyed tower is the most common filed type (13 of 35 registrations), then lattice tower (13).
More in Illinois
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 Mercer County, Illinois”, https://towercensus.com/towers/illinois/county/mercer-county (data as of October 13, 2026).