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2018 Tree City USA
Communities in Maryland

Updated June, 2019. Next update, June 2020.
City Years Population
Aberdeen Proving Ground 14 702
Annapolis 27 39,321
Baltimore 35 611,648
Baltimore County 15 841,145
Bel Air 27 10,640
Boonsboro 4 3,553
Bowie 27 56,155
Brentwood 7 3,000
Centreville 5 4,285
Chestertown 38 5,250
Cheverly 23 6,600
Chevy Chase Village 16 2,000
College Park 30 31,415
Cumberland 22 19,707
Easton 3 15,945
Edmonston 5 1,488
Fort Detrick 17 9,500
Frederick 39 70,036
Friendsville 12 492
Frostburg 5 9,002
Gaithersburg 30 59,933
Galena 30 612
Greenbelt 19 22,264
Greensboro 1 1,800
Hagerstown 34 40,210
Hampstead 14 6,438
Harford County 16 254,560
Havre De Grace 17 14,100
Howard County 29 321,000
Hyattsville 28 18,333
Joint Base Andrews 19 14,000
Laurel 26 25,906
Loch Lynn Heights 12 552
Montgomery County 24 1,100,000
Montgomery Village 31 35,000
NAS Patuxent River 30 1,040
New Carrollton 12 13,000
Oakland 17 1,930
Ocean City 31 6,969
Prince Georges County 35 909,535
Rockville 30 65,000
Town of Emmitsburg 1 3,090
Town of Thurmont 3 6,500
University Park 15 2,548
Village of Martin’s Additions 11 1,000
Westminster 29 19,185
Williamsport 6 2,189