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.

ColoradoAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

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%

09Greeley, COCO115,073+50%

10Pueblo, COCO110,404+8%

11Centennial, COCO108,658–

12Boulder, COCO105,689+12%

13Longmont, COCO100,109+41%

14Castle Rock, COCO83,815+314%

15Loveland, COCO81,387+61%

16Broomfield, COCO79,174+107%

17Commerce City, COCO72,345+245%

18Grand Junction, COCO71,827+71%

19Parker, COCO65,985+180%

20Littleton, COCO46,246+15%

21Brighton, COCO45,395+117%

22Windsor, COCO43,840+343%

23Erie, COCO40,904+550%

24Northglenn, COCO38,893+23%

25Englewood, COCO35,305+11%

26Wheat Ridge, COCO32,081−3%

27Lafayette, COCO30,116+30%

28Fountain, COCO29,450+94%

29Evans, COCO22,500+136%

30Johnstown, COCO22,433+486%

31Montrose, COCO21,583+75%

32Louisville, COCO20,581+9%

33Golden, COCO20,390+19%

34Firestone, COCO20,129+955%

35Durango, COCO19,733+42%

36Frederick, COCO18,241+639%

37Cañon City, COCO17,030+10%

38Castle Pines, COCO15,583+162%

39Greenwood, COCO15,323+39%

40Lone Tree, COCO15,278+214%

41Berthoud, COCO14,080+191%

42Federal Heights, COCO14,075+17%

43Fruita, COCO14,003+116%

44Monument, COCO13,813+601%

45Superior, COCO13,637+51%

46Steamboat Springs, COCO13,557+38%

47Sterling, COCO13,054+15%

48Wellington, COCO12,169+355%

49Fort Morgan, COCO11,841+7%

50Severance, COCO11,841+1883%

51Timnath, COCO11,600+5102%

52Rifle, COCO10,844+60%

53Fort Lupton, COCO10,402+53%

54Glenwood Springs, COCO10,395+34%

55Alamosa, COCO9,849+24%

56Delta, COCO9,802+53%

57Gypsum, COCO9,212+152%

58Milliken, COCO9,183+218%

59Cortez, COCO9,126+14%

60Craig, COCO8,874−3%

61Lochbuie, COCO8,776+328%

62Trinidad, COCO8,091−11%

63Woodland Park, COCO8,014+23%

64Lamar, COCO7,588−14%

65Eagle, COCO7,280+140%

66Mead, COCO7,042+249%

67La Junta, COCO6,864−9%

68Dacono, COCO6,844+127%

69Gunnison, COCO6,836+26%

70Carbondale, COCO6,762+30%

71Aspen, COCO6,489+10%

72Cherry Hills, COCO6,389+7%

73Avon, COCO6,184+11%

74Salida, COCO5,985+9%

75Sheridan, COCO5,972+7%

76Eaton, COCO5,848+117%

77Estes Park, COCO5,780+7%

78Silverthorne, COCO5,418+70%

79Brush, COCO5,337+4%

80Breckenridge, COCO5,015+108%

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES