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. The median across all 117 is +209. Biggest climber in the top 100 since 2020: Arvada, CO, up 107 places to #2.

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SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01▲100Boulder, COCO105,689-1,817−116%

02▲107Arvada, COCO122,901-1,768−114%

03▲52Berkley, COCO10,789-1,747–

04▲84Security-Widefield, COCO37,345-1,294–

05▲88Highlands Ranch, COCO102,257-1,187−102%

06▼2Stratmoor, COCO5,412-1,106−239%

07▲73Littleton, COCO46,246-942−114%

08▲23Clifton, COCO19,518-895−119%

09▲91Westminster, COCO116,182-833−103%

10▲14Cherry Creek, COCO10,721-767–

11▲6Evergreen, COCO8,602-705−143%

12▲32Woodmoor, COCO8,934-602−118%

13▲43Ken Caryl, COCO33,233-578−109%

14▼13Sterling, COCO13,054-563−157%

15▲30Sherrelwood, COCO18,692-536−152%

16▲65Fountain, COCO29,450-502−110%

17▲31Edwards, COCO10,785-461–

18▲54Louisville, COCO20,581-440−107%

19▲2Roxborough Park, COCO9,085-331–

20▲49Wheat Ridge, COCO32,081-328−109%

21▲66Pueblo, COCO110,404-315−109%

22▲40Greenwood, COCO15,323-271−108%

23▲50Federal Heights, COCO14,075-257−109%

24▲10Fruitvale, COCO8,019-252−115%

25▼3Aspen, COCO6,489-248−129%

26▲72Centennial, COCO108,658-217–

27▼16Gleneagle, COCO6,440-209−108%

28▲38Twin Lakes CDP (Adams County), COCO8,030-196–

29▼4Redlands, COCO8,868-193−85%

30▼14La Junta, COCO6,864-182+153%

31▼17Stonegate, COCO8,906-166–

32▲32Dakota Ridge, COCO33,753-139–

33▼1Breckenridge, COCO5,015-119−111%

34▲36Northglenn, COCO38,893-117−103%

35▲47Lone Tree, COCO15,278-106–

36▼9Sheridan, COCO5,972-100−116%

37▼32Avon, COCO6,184-100−103%

38▼10Cherry Hills, COCO6,389-88−112%

39▼31Lamar, COCO7,588-76−114%

40▼37Craig, COCO8,874-69−106%

41▲8Eagle, COCO7,280-69−105%

42▼30Estes Park, COCO5,780-60−103%

43▼41Trinidad, COCO8,091-43−109%

44▼37Brush, COCO5,337-33−103%

45▼4Cañon City, COCO17,030-19−101%

46▼28Fort Morgan, COCO11,841+8−100%

47▲12Golden, COCO20,390+18−100%

48▼9Woodland Park, COCO8,014+29−98%

49▼9Derby, COCO8,453+46−88%

50▲8Eaton, COCO5,848+65−91%

51▼1Alamosa, COCO9,849+73−82%

52▼43Air Force Academy, COCO6,727+119−108%

53▲1Rifle, COCO10,844+133−94%

54Four Square Mile, COCO23,024+152–

55▲36Lafayette, COCO30,116+191−98%

56▼30Salida, COCO5,985+195−75%

57▼47Carbondale, COCO6,762+203–

58▼21Gunnison, COCO6,836+206−73%

59▼8Steamboat Springs, COCO13,557+209−93%

60▼41Cortez, COCO9,126+210−70%

61▼26Superior, COCO13,637+211−98%

62▲16Evans, COCO22,500+231−94%

63▲4Dacono, COCO6,844+233−71%

64▼18Columbine, COCO25,478+249+89%

65▼59Orchard Mesa, COCO6,945+257−46%

66▼43Glenwood Springs, COCO10,395+278−76%

67▼25Fruita, COCO14,003+296−88%

68▼21Battlement Mesa, COCO5,755+317−84%

69▲10Fort Carson, COCO18,019+326−144%

70▼2Durango, COCO19,733+340−77%

71▼18Todd Creek, COCO5,379+351–

72▼59Shaw Heights, COCO5,565+380–

73▼58Delta, COCO9,802+386−85%

74▼44Silverthorne, COCO5,418+413−71%

75▲38Fort Collins, COCO171,500+419−99%

76Englewood, COCO35,305+470−80%

77▼6Milliken, COCO9,183+485−63%

78▼58Gunbarrel, COCO10,051+497+1056%

79▼5Cimarron Hills, COCO19,817+506−87%

80▼44Applewood, COCO8,350+517−113%

81▼6Lochbuie, COCO8,776+521−41%

82▲21Longmont, COCO100,109+521−97%

83▼40The Pinery, COCO11,871+560−76%

84▼23Fairmount, COCO9,902+578–

85▲19Lakewood, COCO156,927+599−97%

86▼21Black Forest, COCO15,738+641−87%

87▼49Welby, COCO16,197+644−77%

88▼59West Pleasant View, COCO5,051+724–

89▼5Wellington, COCO12,169+751−43%

90▼38Montrose, COCO21,583+753−78%

91▼28Meridian, COCO5,634+848–

92▼32Gypsum, COCO9,212+901−53%

93▼60Fort Lupton, COCO10,402+942−42%

94▼37Mead, COCO7,042+1,138−26%

95▼10Monument, COCO13,813+1,336+40%

96Johnstown, COCO22,433+1,580−30%

97▼5Firestone, COCO20,129+1,668+203%

98▼4Brighton, COCO45,395+1,976−71%

99▲8Greeley, COCO115,073+2,011−88%

100▼1Loveland, COCO81,387+2,032−85%

101▼15Berthoud, COCO14,080+2,079+12%

102▼13Frederick, COCO18,241+2,138+45%

103▲7Broomfield, COCO79,174+2,192−84%

104▲7Thornton, COCO147,766+2,320−92%

105▼8Castle Pines, COCO15,583+2,352–

106▼23Severance, COCO11,841+2,447+398%

107▼17Timnath, COCO11,600+2,454+4712%

108▼13Grand Junction, COCO71,827+2,582−80%

109▼32Pueblo West, COCO35,681+2,595−79%

110▼5Parker, COCO65,985+3,271−82%

111▲5Denver, COCO740,613+3,355−96%

112▼10Erie, COCO40,904+3,770−25%

113▼5Commerce City, COCO72,345+4,027−11%

114▼8Windsor, COCO43,840+5,198+8%

115▼3Castle Rock, COCO83,815+5,965−48%

116▼2Aurora, COCO410,053+8,171−85%

117▼2Colorado Springs, COCO494,743+8,926−89%

SHOWING 1–117 OF 117

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES