ss-standard-notebookss-standard-newspaper pinterest-circle facebook-circle twitter-circle instagram-circle ss-standard-direct-right ss-standard-cart ss-standard-close ss-standard-exit ss-standard-notebook ss-standard-redirect ss-standard-rows ss-standard-search ss-standard-user
cart list log in search

2020 Tree City USA
Communities in Colorado

Updated June 2021. Next Update: June 2022.

City Years Population
Alamosa 31 9,591
Arvada 30 106,433
Aspen 29 7,500
Aurora 37 375,000
Basalt 10 4,166
Berthoud 38 9,500
Boulder 38 107,353
Brighton 35 41,468
Broomfield 32 71,337
Brush 31 5,700
Buckley AFB 16 26,000
Buena Vista 32 2,950
Campo 17 103
Canon City 41 16,000
Carbondale 27 6,898
Castle Rock 34 70,687
Cedaredge 27 2,300
Cherry Hills Village 15 6,388
Colorado Springs 44 472,688
Commerce City 30 56,000
Cortez 29 8,500
Crested Butte 20 1,500
Del Norte 12 1,578
Denver 35 734,134
Durango 41 18,973
Eads 27 609
Eagle 3 6,700
Edgewater 29 5,800
Elizabeth 22 1,600
Englewood 36 34,407
Erie 23 28,400
Estes Park 24 6,310
Evans 37 21,912
Florence 37 3,944
Fort Carson 33 27,300
Fort Collins 43 167,830
Fort Lupton 13 9,000
Frederick 7 15,427
Fruita 28 13,406
Glenwood Springs 36 10,000
Golden 31 21,254
Grand Junction 38 63,374
Grand Lake 31 460
Greeley 41 111,748
Greenwood Village 32 15,801
Gunnison 31 6,530
Hayden 16 2,000
Highlands Ranch 33 100,830
Ken-Caryl Ranch 31 12,950
Kersey 15 1,600
La Junta 40 6,998
La Veta 35 830
Lafayette 26 29,000
Lake City 33 400
Lakewood 39 156,798
Lamar 30 7,656
Limon 30 1,924
Littleton 34 50,507
Lone Tree 19 14,500
Longmont 41 96,577
Louisville 40 21,163
Loveland 32 78,402
Lyons 34 2,155
Mancos 25 1,500
Manitou Springs 2 5,414
Milliken 18 8,250
Monte Vista 26 4,300
Montrose 32 20,000
Monument 27 3,500
New Castle 17 4,518
Northglenn 31 38,819
Olney Springs 16 329
Ordway 18 1,028
Paonia 14 1,483
Peterson AFB 27 16,367
Platteville 17 3,000
Poncha Springs 11 1,089
Pueblo 41 113,662
Rocky Ford 29 3,828
Salida 34 6,000
Schriever AFB 23 9,053
Severance 3 8,500
Silt 23 3,100
Springfield 30 1,347
Steamboat Springs 30 13,212
Sterling 33 14,000
Superior 17 13,500
Swink 23 596
Thornton 35 140,000
Trinidad 8 8,200
USAF Academy 28 6,680
Westminster 36 117,832
Wheat Ridge 42 31,400
Windsor 40 35,000