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2020 Tree City USA
Communities in Maryland

Updated June 2021. Next Update: June 2022.

City Years Population
Aberdeen 3 16,000
Aberdeen Proving Ground 16 702
Annapolis 29 39,174
Baltimore 37 593,490
Baltimore County 17 849,842
Bel Air 29 10,700
Berwyn Heights 26 3,261
Boonsboro 6 3,579
Bowie 29 58,290
Centreville 7 4,285
Chestertown 40 5,250
Cheverly 25 6,428
Chevy Chase Village 18 2,000
City of Salisbury 2 35,000
College Park 32 32,275
Cumberland 24 20,859
Easton 5 16,823
Edmonston 7 1,545
Fort Detrick 19 8,000
Frederick 41 74,346
Friendsville 14 492
Frostburg 7 9,001
Gaithersburg 32 70,223
Galena 32 610
Greenbelt 21 23,281
Hagerstown 36 40,152
Hampstead 16 6,334
Harford County 18 257,680
Havre De Grace 19 14,000
Howard County 31 327,018
Hyattsville 30 18,235
Joint Base Andrews 21 14,000
La Plata 1 9,631
Laurel 28 25,346
Loch Lynn Heights 14 512
Montgomery County 26 1,100,000
Montgomery Village 33 35,000
Mount Rainier 18 12,000
NAS Patuxent River 32 1,040
New Carrollton 14 13,000
Oakland 19 1,930
Ocean City 33 6,889
Poolesville 2 5,700
Prince Georges County 37 909,327
Rockville 32 65,000
Somerset County 38 25,616
Takoma Park 34 17,000
The Town of Upper Marlboro 1 731
Town Of Chevy Chase 10 2,800
Town of Emmitsburg 3 3,090
Town of Middletown 2 4,500
Town of Somerset 2 1,200
Town of Thurmont 5 6,700
University Park 17 2,641
Village of Martin's Additions 13 1,000
Westminster 31 18,710
Wicomico County 1 103,609