RANKING · 2025 ESTIMATES · 80 SHOWN OF 80

Largest by population, Colorado cities

The most populous Colorado cities as of the 2025 population estimates. This list covers the 80 cities in Colorado that qualify, ranked against each other statewide. The median across all 80 is 15,278. Biggest climber in the top 100 since 2020: Timnath, CO, up 49 places to #51.

ColoradoAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros ZIP codes

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

01Denver, COCO740,613+34%

02Colorado Springs, COCO494,743+37%

03Aurora, COCO410,053+48%

04Fort Collins, COCO171,500+45%

05Lakewood, COCO156,927+9%

06Thornton, COCO147,766+79%

07Arvada, COCO122,901+20%

08Westminster, COCO116,182+15%

09▲1Greeley, COCO115,073+50%

10▼1Pueblo, COCO110,404+8%

11Centennial, COCO108,658–

12Boulder, COCO105,689+12%

13▲1Longmont, COCO100,109+41%

14▲3Castle Rock, COCO83,815+314%

15Loveland, COCO81,387+61%

16Broomfield, COCO79,174+107%

17▲2Commerce City, COCO72,345+245%

18Grand Junction, COCO71,827+71%

19▲1Parker, COCO65,985+180%

20▲1Littleton, COCO46,246+15%

21▲1Brighton, COCO45,395+117%

22▲7Windsor, COCO43,840+343%

23▲9Erie, COCO40,904+550%

24Northglenn, COCO38,893+23%

25▲2Englewood, COCO35,305+11%

26▲4Wheat Ridge, COCO32,081−3%

27▲4Lafayette, COCO30,116+30%

28▲5Fountain, COCO29,450+94%

29▲7Evans, COCO22,500+136%

30▲15Johnstown, COCO22,433+486%

31▲9Montrose, COCO21,583+75%

32▲5Louisville, COCO20,581+9%

33▲6Golden, COCO20,390+19%

34▲13Firestone, COCO20,129+955%

35▲8Durango, COCO19,733+42%

36▲15Frederick, COCO18,241+639%

37▲9Cañon City, COCO17,030+10%

38▲26Castle Pines, COCO15,583+162%

39▲9Greenwood, COCO15,323+39%

40▲13Lone Tree, COCO15,278+214%

41▲26Berthoud, COCO14,080+191%

42▲10Federal Heights, COCO14,075+17%

43▲12Fruita, COCO14,003+116%

44▲22Monument, COCO13,813+601%

45▲12Superior, COCO13,637+51%

46▲10Steamboat Springs, COCO13,557+38%

47▲7Sterling, COCO13,054+15%

48▲15Wellington, COCO12,169+355%

49▲10Fort Morgan, COCO11,841+7%

50▲41Severance, COCO11,841+1883%

51▲49Timnath, COCO11,600+5102%

52▲13Rifle, COCO10,844+60%

53▲34Fort Lupton, COCO10,402+53%

54▲14Glenwood Springs, COCO10,395+34%

55▲14Alamosa, COCO9,849+24%

56▲22Delta, COCO9,802+53%

57▲29Gypsum, COCO9,212+152%

58▲23Milliken, COCO9,183+218%

59▲20Cortez, COCO9,126+14%

60▲17Craig, COCO8,874−3%

61▲24Lochbuie, COCO8,776+328%

62▲20Trinidad, COCO8,091−11%

63▲25Woodland Park, COCO8,014+23%

64▲26Lamar, COCO7,588−14%

65▲27Eagle, COCO7,280+140%

66▲49Mead, COCO7,042+249%

67▲26La Junta, COCO6,864−9%

68▲35Dacono, COCO6,844+127%

69▲29Gunnison, COCO6,836+26%

70▲32Carbondale, COCO6,762+30%

71▲23Aspen, COCO6,489+10%

72▲29Cherry Hills, COCO6,389+7%

73▲32Avon, COCO6,184+11%

74▲34Salida, COCO5,985+9%

75▲29Sheridan, COCO5,972+7%

76▲31Eaton, COCO5,848+117%

77▲29Estes Park, COCO5,780+7%

78▲38Silverthorne, COCO5,418+70%

79▲31Brush, COCO5,337+4%

80▲32Breckenridge, COCO5,015+108%

SHOWING 1–80 OF 80

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES