TowerCensus

Antenna structures in San Juan County, Washington

At a glance

San Juan County, Washington has 20 FCC-registered antenna structures, 13 of them marked constructed. That is the 32nd-largest count among the 38 Washington counties with registrations, and 0.55% of the state's 3,660. The tallest constructed structure in the county is registration 1032381 near Eastsound at 160 m (525 ft).

Dataset updated . Refreshed from the FCC ASR weekly bulk database.

Registered structures
20
Constructed
13
Avg height
42 m
Tallest standing
160 m

How does San Juan County compare with the rest of Washington?

With 20 registrations, San Juan County ranks 32nd of 38 counties in Washington; King County leads the state with 901. The average registered overall height here is 42 m, roughly in line with the Washington average of 42 m. The tallest standing structure, at 160 m, is about 3.8 times the county average.

What kinds of structures are registered in San Juan County?

The most common filed structure type in San Juan County is tower (code TOWER), with 8 registrations (40%). It is followed by pole (4) and lattice tower (2). In all, 5 different FCC structure-type codes appear in the county.

By registration status: 13 constructed, 3 canceled, 2 granted (not yet constructed), 1 dismantled and 1 terminated. Only constructed registrations describe structures the registry treats as standing; canceled, dismantled and terminated records stay listed as history.

Who owns the towers in San Juan County?

K2 Towers III, LLC and Seattle SMSA Limited Partnership hold the most registrations in San Juan County, 4 each of the 20. Other owners include Port of Orcas (2), NEW CINGULAR WIRELESS SERVICES, INC. (1) and T-Mobile West LLC (1). 8 owners with two or more registrations nationwide hold structures in the county.

Which places in San Juan County have registered structures?

Registrations in San Juan County list 9 different city or place names. The most frequent are Eastsound (7), Friday Harbor (6), Olga (1), Orcas (1) and Lopez (1).

Every registration

All 20 structures in San Juan County, tallest first

#StructureHeightTypeStatus
1Eastsound · 1032381160 mUnspecified structureConstructed
2Eastsound · 1251758152 mUnspecified structureConstructed
3Eastsound · 1032380123 mUnspecified structureConstructed
4Eastsound · 103237978 mUnspecified structureConstructed
5Olga · 130093743 mMonopoleCanceled
6Orcas · 102850340 mTower (type not specified)Canceled
7Lopez · 125691827 mPoleConstructed
8Friday Harbor · 123370526 mPoleConstructed
9Friday Harbor · 103125222 mTower (type not specified)Dismantled
10Buckhorn · 125522621 mTower (type not specified)Constructed
11Friday Harbor · 121436420 mLattice towerConstructed
12Roche Harbor · 103134420 mTower (type not specified)Terminated
13Eastsound · 125958218 mTower (type not specified)Canceled
14Friday Harbor · 120402218 mTower (type not specified)Constructed
15Friday Habor · 123855217 mPoleConstructed
16Friday Harbor · 126602315 mTower (type not specified)Constructed
17Friday Harbor · 120552312 mBuilding with poleConstructed
18Eastsound · 123988910 mTower (type not specified)Granted (not yet constructed)
19Eastsound · 130275010 mLattice towerConstructed
20Lopez Island · 13298989 mPoleGranted (not yet constructed)

Frequently asked questions

How many cell towers are in San Juan County, WA?

The FCC Antenna Structure Registration database lists 20 registered antenna structures in San Juan County, Washington, 13 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 San Juan County?

The tallest constructed registered structure in San Juan County is registration 1032381, a structure near Eastsound at 160 m (525 ft) overall height.

Who owns the most towers in San Juan County?

K2 Towers III, LLC and Seattle SMSA Limited Partnership are tied for the most registrations in San Juan County, with 4 each.

What kind of towers are in San Juan County?

Tower (type not specified) is the most common filed type (8 of 20 registrations), then pole (4).

More in Washington

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 San Juan County, Washington”, https://towercensus.com/towers/washington/county/san-juan-county (data as of October 13, 2026).