Cell towers in St. Mary's County, MD

The FCC registry lists 53 constructed antenna structures in St. Mary's County, 4% of Maryland's 1,311. Ownership is spread across 25 registrants; the largest, Crown Castle, has 10 (19%). The three big tower companies — American Tower, Crown Castle and SBA — hold 26 between them.

Value a buyout offer

1Constructed structures 53
2Tallest 502 ft
3Largest owner Crown Castle
4Median height (state 199 ft) 199 ft

Structures

rank 9 of 24 in MD

Most common type

Monopole

38% of structures

Over 200 feet

38% of structures

Peak build decade

2000s

32% built then

Who owns the towers in St. Mary's County

25 different registrants own the 53 structures. 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.

Constructed structures in St. Mary's County by owner group, bars to scale. Source: FCC ASR, October 2026.

Height and age

The median structure here stands 199 feet, close to the Maryland median of 199 feet. The tallest is a tower near Mechanicsville at 502 feet, built in 1997. More than in any other decade, 32% were built in the 2000s.

Structures in St. Mary's County by type, bars to scale. Source: FCC ASR.

Structures in St. Mary's 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.	Type	Height	Built	City	Owner
1035818	Tower	502 ft	1997	Mechanicsville	Pinnacle Towers LLC
1053371	Tower	374 ft	1993	Hillville	SOMAR Communications, Inc.
1299558	Lattice tower	373 ft	2017	Leonardtown	St. Mary's, County of
1053370	Tower	367 ft	1988	Mechanicsville	SOMAR Communications, Inc.
1048296	Guyed tower	361 ft	2007	California	SOMAR Communications, Inc.
1269134	Tower	348 ft	2011	Bushwood	Maryland State Highway Administration
1273613	Tower	348 ft	2010	Leonardtown	Maryland State Highway Administration
1273614	Tower	348 ft	2010	St. James	Maryland State Highway Administration
1286709	Lattice tower	348 ft	2013	Great Mills	St. Mary's, County of
1229878	Tower	346 ft	2002	Mechanicsville	Crown Atlantic Company, LLC
1224392	Lattice tower	320 ft	2001	Leonardtown	Crown Communication LLC
1035844	Tower	299 ft	1996	Hollywood	Crown Atlantic Company, LLC
1059228	Tower	279 ft	1977	Leonardtown	RSG&F, L.L.C.
1048294	Other or unspecified	276 ft	2002	California	SOMAR Communications, Inc.
1048295	Other or unspecified	276 ft	1967	California	SOMAR Communications, Inc.
1048297	Other or unspecified	276 ft	1967	California	SOMAR Communications, Inc.
1035750	Tower	265 ft	1994	Mechanicsville	Crown Atlantic Company, LLC
1054133	Lattice tower	231 ft	1998	Charlotte Hall	SBA Towers, LLC
1037387	Guyed tower	229 ft	2013	Lexington Park	American Towers LLC
1299631	Monopole	202 ft	2016	Great Mills	American Towers LLC
1250414	Monopole	200 ft	2006	Ridge	SBA Infrastructures, LLC
1056066	Lattice tower	199 ft	1998	Mechanicsville	SBA Properties, LLC
1224375	Lattice tower	199 ft	2001	Dameron	Crown Atlantic Company, LLC
1234079	Monopole	199 ft	2002	California	SBA Towers, LLC
1292761	Monopole	199 ft	2014	Mechanicsville	SBA Towers VI, LLC
1297694	Monopole	199 ft	2015	Lexington Park	American Towers LLC
1297965	Monopole	199 ft	2016	Mechanicsville	American Towers LLC
1299630	Monopole	199 ft	2016	Mechanicsville	American Towers LLC
1300161	Monopole	199 ft	2016	Leonardtown	American Towers LLC
1304382	Monopole	199 ft	2017	Leonardtown	Crown Castle Towers 06-2 LLC
1315880	Monopole	199 ft	2020	Mechanicsville	Crown Castle Towers 06-2 LLC
1330958	Monopole	199 ft	2025	Mechanicsville	TELECOM CAPITAL GROUP, LLC
1237845	Monopole	197 ft	2003	Leonardtown	SBA Infrastructures, LLC
1267124	Monopole	196 ft	2009	Avenue	SBA Towers IV, LLC
1053449	Tower	194 ft	1983	Scotland	MARYLAND, STATE OF
1234832	Pole	194 ft	2003	Park Hill	STC Three LLC
1289179	Monopole	190 ft	2015	Hollywood	Cellco Partnership
1035935	Tower	185 ft	1998	Lexington Park	LDG Communications
1252830	Monopole	181 ft	2009	Hollywood	Crown Castle Towers 06-2 LLC
1297646	Monopole	179 ft	2015	California	American Towers LLC
1295199	Monopole	164 ft	2015	Tall Timbers	American Towers LLC
1248574	Tower	158 ft	2005	Hollywood	T-Mobile USA Tower LLC
1264971	Monopole	155 ft	2009	Valley Lee	Crown Castle Towers 06-2 LLC
1327915	Monopole	149 ft	2024	Lexington Park	Network Towers, LLC
1214115	Pole	148 ft	2002	Patuxent River	Cellco Partnership
1035991	Pole	143 ft	1970	Ridge	SBA Properties, LLC
1063250	Tower	141 ft	1998	Lexington Park	GRACE CHRISTIAN SCHOOL DBA = GRACE MISSIONARY BAPTIST CHURCH
1299038	Lattice tower	141 ft	1995	Ridge	SOUTHERN MARYLAND ELECTRIC COOPERATIVE, INC.
1316641	Monopole	132 ft	2021	Patuxent River	Cellco Partnership
1281112	Water tank	123 ft	2008	St. Mary'S City	Cellco Partnership
1274421	Tower	115 ft	2011	Saint Marys City	CSN International, Inc.
1265909	Tower	102 ft	2009	Hollywood	St. Mary's County Metropolitan Commission
1217008	Pole	95 ft	2001	California	STC Three LLC

If you have a tower lease in St. Mary's 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 Maryland with similar tower counts: Frederick County (73), Washington County (59), Allegany County (55), Charles County (52), Howard County (50).

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.