RANKING · 2000 CENSUS · 99 SHOWN OF 99

Most population lost, Colorado cities · 2000

Colorado cities that lost the most residents from the 1990 census to 2000, by raw count of people rather than percentage. This list covers the 99 cities in Colorado that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS –

01Applewood, COCO8,350-3,946–

02Air Force Academy, COCO6,727-1,536–

03Redlands, COCO8,868-1,312–

04Fort Carson, COCO18,019-743–

05La Junta, COCO6,864-72–

06Gunbarrel, COCO10,051+43–

07Timnath, COCO11,600+51–

08Columbine, COCO25,478+132–

09Derby, COCO8,453+380–

10Alamosa, COCO9,849+401–

11Orchard Mesa, COCO6,945+479–

12Severance, COCO11,841+491–

13Trinidad, COCO8,091+498–

14Lamar, COCO7,588+526–

15Firestone, COCO20,129+550–

16Sheridan, COCO5,972+624–

17Cortez, COCO9,126+693–

18Cherry Hills, COCO6,389+713–

19Eaton, COCO5,848+731–

20Salida, COCO5,985+770–

21Gunnison, COCO6,836+773–

22Dacono, COCO6,844+792–

23Stratmoor, COCO5,412+796–

24Aspen, COCO6,489+865–

25Lochbuie, COCO8,776+881–

26Monument, COCO13,813+951–

27Brush, COCO5,337+956–

28Sterling, COCO13,054+994–

29Sherrelwood, COCO18,692+1,021–

30Craig, COCO8,874+1,098–

31Breckenridge, COCO5,015+1,123–

32Glenwood Springs, COCO10,395+1,175–

33Wellington, COCO12,169+1,314–

34Milliken, COCO9,183+1,315–

35Silverthorne, COCO5,418+1,439–

36Eagle, COCO7,280+1,452–

37Frederick, COCO18,241+1,479–

38Durango, COCO19,733+1,492–

39Mead, COCO7,042+1,529–

40Fort Lupton, COCO10,402+1,625–

41Evergreen, COCO8,602+1,634–

42Fruitvale, COCO8,019+1,714–

43Berthoud, COCO14,080+1,849–

44Gypsum, COCO9,212+1,904–

45Woodland Park, COCO8,014+1,905–

46Fort Morgan, COCO11,841+1,966–

47Battlement Mesa, COCO5,755+2,044–

48Rifle, COCO10,844+2,148–

49Johnstown, COCO22,433+2,248–

50Estes Park, COCO5,780+2,249–

51Englewood, COCO35,305+2,340–

52The Pinery, COCO11,871+2,368–

53Fruita, COCO14,003+2,433–

54Gleneagle, COCO6,440+2,466–

55Delta, COCO9,802+2,611–

56Cañon City, COCO17,030+2,629–

57Federal Heights, COCO14,075+2,723–

58Welby, COCO16,197+2,755–

59Steamboat Springs, COCO13,557+3,120–

60Woodmoor, COCO8,934+3,319–

61Greenwood, COCO15,323+3,446–

62Pueblo, COCO110,404+3,481–

63Montrose, COCO21,583+3,490–

64Wheat Ridge, COCO32,081+3,494–

65Evans, COCO22,500+3,637–

66Avon, COCO6,184+3,763–

67Golden, COCO20,390+4,021–

68Cimarron Hills, COCO19,817+4,034–

69Northglenn, COCO38,893+4,380–

70Commerce City, COCO72,345+4,525–

71Clifton, COCO19,518+4,674–

72Windsor, COCO43,840+4,834–

73Erie, COCO40,904+5,028–

74Black Forest, COCO15,738+5,104–

75Fountain, COCO29,450+5,213–

76Ken Caryl, COCO33,233+6,496–

77Louisville, COCO20,581+6,576–

78Littleton, COCO46,246+6,679–

79Brighton, COCO45,395+6,705–

80Lafayette, COCO30,116+8,645–

81Superior, COCO13,637+8,760–

82Boulder, COCO105,689+11,361–

83Castle Rock, COCO83,815+11,516–

84Pueblo West, COCO35,681+12,513–

85Grand Junction, COCO71,827+12,952–

86Arvada, COCO122,901+13,063–

87Loveland, COCO81,387+13,236–

88Broomfield, COCO79,174+13,636–

89Greeley, COCO115,073+16,394–

90Lakewood, COCO156,927+17,645–

91Parker, COCO65,985+18,108–

92Longmont, COCO100,109+19,569–

93Westminster, COCO116,182+26,317–

94Thornton, COCO147,766+27,353–

95Fort Collins, COCO171,500+30,894–

96Aurora, COCO410,053+54,283–

97Highlands Ranch, COCO102,257+60,750–

98Colorado Springs, COCO494,743+79,750–

99Denver, COCO740,613+87,026–

SHOWING 1–99 OF 99

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS