Antenna structures in Monona County, Iowa
At a glance
Monona County, Iowa has 27 FCC-registered antenna structures, 19 of them marked constructed. That is the 67th-largest count among the 99 Iowa counties with registrations, and 0.65% of the state's 4,130. The tallest constructed structure in the county is registration 1017834 near Onawa at 183 m (600 ft).
Dataset updated . Refreshed from the FCC ASR weekly bulk database.
How does Monona County compare with the rest of Iowa?
With 27 registrations, Monona County ranks 67th of 99 counties in Iowa; Polk County leads the state with 229. The average registered overall height here is 82 m, roughly in line with the Iowa average of 79 m. The tallest standing structure, at 183 m, is about 2.2 times the county average.
What kinds of structures are registered in Monona County?
The most common filed structure type in Monona County is tower (code TOWER), with 8 registrations (29.6%). It is followed by guyed tower (7) and lattice tower (6). In all, 5 different FCC structure-type codes appear in the county.
By registration status: 19 constructed, 4 granted (not yet constructed) and 4 canceled. Only constructed registrations describe structures the registry treats as standing; canceled, dismantled and terminated records stay listed as history.
Who owns the towers in Monona County?
Iowa 8-Monona Limited Partnership holds the most registrations in Monona County, with 4 of the 27. The next largest are Iowa Wireless Services Holding Corporation (3), American Towers LLC (2) and CCATT LLC (2). 14 owners with two or more registrations nationwide hold structures in the county.
Which places in Monona County have registered structures?
Registrations in Monona County list 8 different city or place names. The most frequent are Onawa (9), Mapleton (4), Whiting (4), Castana (4) and Blencoe (2).
Every registration
All 27 structures in Monona County, tallest first
| # | Structure | Height | Type | Status |
|---|---|---|---|---|
| 1 | Onawa · 1017834 | 183 m | Tower (type not specified) | Constructed |
| 2 | Mapleton · 1031567 | 139 m | Guyed tower | Constructed |
| 3 | Turin · 1027127 | 127 m | Tower (type not specified) | Granted (not yet constructed) |
| 4 | Hornick · 1204144 | 115 m | Guyed tower | Constructed |
| 5 | Onawa · 1223529 | 102 m | Guyed tower | Constructed |
| 6 | Whiting · 1223606 | 101 m | Guyed tower | Constructed |
| 7 | Onawa · 1018074 | 95 m | Guyed tower | Constructed |
| 8 | Whiting · 1272867 | 94 m | Unspecified structure | Canceled |
| 9 | Castana · 1303695 | 91 m | Lattice tower | Constructed |
| 10 | Onawa · 1054545 | 91 m | Guyed tower | Constructed |
| 11 | Castana · 1023678 | 86 m | Tower (type not specified) | Constructed |
| 12 | Castana · 1303179 | 81 m | Lattice tower | Granted (not yet constructed) |
| 13 | Castana · 1255602 | 79 m | Tower (type not specified) | Constructed |
| 14 | Blencoe · 1307267 | 79 m | Lattice tower | Constructed |
| 15 | Blencoe · 1273572 | 78 m | Unspecified structure | Canceled |
| 16 | Soldier · 1326804 | 78 m | Lattice tower | Constructed |
| 17 | Onawa · 1015204 | 76 m | Tower (type not specified) | Constructed |
| 18 | Onawa · 1272781 | 60 m | Unspecified structure | Canceled |
| 19 | Onawa · 1257693 | 59 m | Lattice tower | Constructed |
| 20 | Whiting · 1326827 | 59 m | Monopole | Canceled |
| 21 | Whiting · 1328155 | 58 m | Lattice tower | Constructed |
| 22 | Mapleton · 1031906 | 57 m | Guyed tower | Constructed |
| 23 | Onawa · 1272280 | 52 m | Tower (type not specified) | Granted (not yet constructed) |
| 24 | Onawa · 1279057 | 50 m | Tank | Granted (not yet constructed) |
| 25 | Soldier · 1276537 | 48 m | Tower (type not specified) | Constructed |
| 26 | Mapleton · 1059695 | 47 m | Tower (type not specified) | Constructed |
| 27 | Mapleton · 1268702 | 41 m | Monopole | Constructed |
Frequently asked questions
How many cell towers are in Monona County, IA?
The FCC Antenna Structure Registration database lists 27 registered antenna structures in Monona County, Iowa, 19 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 Monona County?
The tallest constructed registered structure in Monona County is registration 1017834, a tower near Onawa at 183 m (600 ft) overall height.
Who owns the most towers in Monona County?
Iowa 8-Monona Limited Partnership holds the most registrations in Monona County (4), followed by Iowa Wireless Services Holding Corporation (3).
What kind of towers are in Monona County?
Tower (type not specified) is the most common filed type (8 of 27 registrations), then guyed tower (7).
More in Iowa
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 Monona County, Iowa”, https://towercensus.com/towers/iowa/county/monona-county (data as of October 13, 2026).