2019 Tree City USA
Communities in Colorado

City	Years	Population
Alamosa	30	9,410
Arvada	29	118,807
Aspen	28	7,365
Aurora	36	366,623
Basalt	9	4,170
Berthoud	37	9,000
Boulder	37	108,090
Brighton	34	39,993
Broomfield	31	69,267
Brush	30	5,463
Buckley AFB	15	26,000
Buena Vista	31	2,993
Campo	16	102
Canon City	40	16,500
Carbondale	26	6,820
Castle Rock	33	65,903
Cedaredge	26	2,300
Cherry Hills Village	14	6,388
Colorado Springs	43	464,474
Commerce City	29	56,000
Cortez	28	8,600
Crested Butte	19	1,500
Del Norte	11	1,578
Denver	34	705,439
Durango	40	18,985
Eads	26	590
Eagle	2	6,700
Edgewater	28	5,308
Elizabeth	21	1,400
Englewood	35	34,407
Erie	22	28,308
Estes Park	23	5,858
Evans	36	20,757
Florence	36	3,887
Fort Carson	32	12,200
Fort Collins	42	167,830
Fort Lupton	12	8,163
Frederick	6	13,352
Fruita	27	13,294
Glenwood Springs	35	10,000
Golden	30	20,571
Grand Junction	37	62,475
Grand Lake	30	475
Greeley	40	108,175
Greenwood Village	31	15,721
Gunnison	30	6,530
Hayden	15	1,925
Highlands Ranch	32	96,000
Ken-Caryl Ranch	30	12,950
Kersey	14	1,600
La Junta	39	6,898
La Veta	34	830
Lafayette	25	28,261
Lake City	32	400
Lakewood	38	154,393
Lamar	29	7,534
Limon	29	1,924
Littleton	33	48,007
Lone Tree	18	14,900
Longmont	40	94,341
Louisville	39	21,163
Loveland	31	77,446
Lyons	33	2,053
Mancos	24	1,407
Manitou Springs	1	5,200
Milliken	17	8,000
Monte Vista	25	4,300
Montrose	31	20,000
Monument	26	3,500
New Castle	16	4,700
Northglenn	30	39,010
Olathe	28	1,800
Olney Springs	15	323
Ordway	17	1,023
Paonia	13	1,450
Peterson AFB	26	13,466
Platteville	16	3,000
Poncha Springs	10	998
Pueblo	40	111,750
Rocky Ford	28	3,827
Salida	33	5,800
Schriever AFB	22	7,058
Severance	2	7,000
Silt	22	3,100
Springfield	29	1,370
Steamboat Springs	29	12,690
Sterling	32	15,000
Superior	16	13,000
Swink	22	598
Thornton	34	144,000
Trinidad	7	8,211
USAF Academy	27	6,680
Westminster	35	113,875
Wheat Ridge	41	31,000
Windsor	39	34,500