RANKING · 2024 ACS · 117 SHOWN OF 117

Most population lost, Colorado cities

Colorado cities that lost the most residents from the 2020 census to 2024, by raw count of people rather than percentage. This list covers the 117 cities in Colorado that qualify, ranked against each other statewide.

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ColoradoAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Boulder, COCO105,689-1,817−116%

02Arvada, COCO122,901-1,768−114%

03Berkley, COCO10,789-1,747–

04Security-Widefield, COCO37,345-1,294–

05Highlands Ranch, COCO102,257-1,187−102%

06Stratmoor, COCO5,412-1,106−239%

07Littleton, COCO46,246-942−114%

08Clifton, COCO19,518-895−119%

09Westminster, COCO116,182-833−103%

10Cherry Creek, COCO10,721-767–

11Evergreen, COCO8,602-705−143%

12Woodmoor, COCO8,934-602−118%

13Ken Caryl, COCO33,233-578−109%

14Sterling, COCO13,054-563−157%

15Sherrelwood, COCO18,692-536−152%

16Fountain, COCO29,450-502−110%

17Edwards, COCO10,785-461–

18Louisville, COCO20,581-440−107%

19Roxborough Park, COCO9,085-331–

20Wheat Ridge, COCO32,081-328−109%

21Pueblo, COCO110,404-315−109%

22Greenwood, COCO15,323-271−108%

23Federal Heights, COCO14,075-257−109%

24Fruitvale, COCO8,019-252−115%

25Aspen, COCO6,489-248−129%

26Centennial, COCO108,658-217–

27Gleneagle, COCO6,440-209−108%

28Twin Lakes CDP (Adams County), COCO8,030-196–

29Redlands, COCO8,868-193−85%

30La Junta, COCO6,864-182+153%

31Stonegate, COCO8,906-166–

32Dakota Ridge, COCO33,753-139–

33Breckenridge, COCO5,015-119−111%

34Northglenn, COCO38,893-117−103%

35Lone Tree, COCO15,278-106–

36Sheridan, COCO5,972-100−116%

37Avon, COCO6,184-100−103%

38Cherry Hills, COCO6,389-88−112%

39Lamar, COCO7,588-76−114%

40Craig, COCO8,874-69−106%

41Eagle, COCO7,280-69−105%

42Estes Park, COCO5,780-60−103%

43Trinidad, COCO8,091-43−109%

44Brush, COCO5,337-33−103%

45Cañon City, COCO17,030-19−101%

46Fort Morgan, COCO11,841+8−100%

47Golden, COCO20,390+18−100%

48Woodland Park, COCO8,014+29−98%

49Derby, COCO8,453+46−88%

50Eaton, COCO5,848+65−91%

51Alamosa, COCO9,849+73−82%

52Air Force Academy, COCO6,727+119−108%

53Rifle, COCO10,844+133−94%

54Four Square Mile, COCO23,024+152–

55Lafayette, COCO30,116+191−98%

56Salida, COCO5,985+195−75%

57Carbondale, COCO6,762+203–

58Gunnison, COCO6,836+206−73%

59Steamboat Springs, COCO13,557+209−93%

60Cortez, COCO9,126+210−70%

61Superior, COCO13,637+211−98%

62Evans, COCO22,500+231−94%

63Dacono, COCO6,844+233−71%

64Columbine, COCO25,478+249+89%

65Orchard Mesa, COCO6,945+257−46%

66Glenwood Springs, COCO10,395+278−76%

67Fruita, COCO14,003+296−88%

68Battlement Mesa, COCO5,755+317−84%

69Fort Carson, COCO18,019+326−144%

70Durango, COCO19,733+340−77%

71Todd Creek, COCO5,379+351–

72Shaw Heights, COCO5,565+380–

73Delta, COCO9,802+386−85%

74Silverthorne, COCO5,418+413−71%

75Fort Collins, COCO171,500+419−99%

76Englewood, COCO35,305+470−80%

77Milliken, COCO9,183+485−63%

78Gunbarrel, COCO10,051+497+1056%

79Cimarron Hills, COCO19,817+506−87%

80Applewood, COCO8,350+517−113%

81Lochbuie, COCO8,776+521−41%

82Longmont, COCO100,109+521−97%

83The Pinery, COCO11,871+560−76%

84Fairmount, COCO9,902+578–

85Lakewood, COCO156,927+599−97%

86Black Forest, COCO15,738+641−87%

87Welby, COCO16,197+644−77%

88West Pleasant View, COCO5,051+724–

89Wellington, COCO12,169+751−43%

90Montrose, COCO21,583+753−78%

91Meridian, COCO5,634+848–

92Gypsum, COCO9,212+901−53%

93Fort Lupton, COCO10,402+942−42%

94Mead, COCO7,042+1,138−26%

95Monument, COCO13,813+1,336+40%

96Johnstown, COCO22,433+1,580−30%

97Firestone, COCO20,129+1,668+203%

98Brighton, COCO45,395+1,976−71%

99Greeley, COCO115,073+2,011−88%

100Loveland, COCO81,387+2,032−85%

101Berthoud, COCO14,080+2,079+12%

102Frederick, COCO18,241+2,138+45%

103Broomfield, COCO79,174+2,192−84%

104Thornton, COCO147,766+2,320−92%

105Castle Pines, COCO15,583+2,352–

106Severance, COCO11,841+2,447+398%

107Timnath, COCO11,600+2,454+4712%

108Grand Junction, COCO71,827+2,582−80%

109Pueblo West, COCO35,681+2,595−79%

110Parker, COCO65,985+3,271−82%

111Denver, COCO740,613+3,355−96%

112Erie, COCO40,904+3,770−25%

113Commerce City, COCO72,345+4,027−11%

114Windsor, COCO43,840+5,198+8%

115Castle Rock, COCO83,815+5,965−48%

116Aurora, COCO410,053+8,171−85%

117Colorado Springs, COCO494,743+8,926−89%

SHOWING 1–117 OF 117

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES