RANKING · 2020 CENSUS · 116 SHOWN OF 116

Most population lost, Colorado cities · 2020

Colorado cities that lost the most residents from the 2010 census to 2020, by raw count of people rather than percentage. This list covers the 116 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 2000

01Sterling, COCO13,054-1,042−205%

02Trinidad, COCO8,091-767−254%

03Craig, COCO8,874-404−137%

04Stratmoor, COCO5,412-382−148%

05Avon, COCO6,184-375−110%

06Orchard Mesa, COCO6,945-148−131%

07Brush, COCO5,337-124−113%

08Lamar, COCO7,588-117−122%

09Air Force Academy, COCO6,727-72−95%

10Carbondale, COCO6,762+7–

11Gleneagle, COCO6,440+38−98%

12Estes Park, COCO5,780+46−98%

13Shaw Heights, COCO5,565+69–

14Stonegate, COCO8,906+110–

15Delta, COCO9,802+120−95%

16La Junta, COCO6,864+245−440%

17Evergreen, COCO8,602+269−84%

18Fort Morgan, COCO11,841+282−86%

19Cortez, COCO9,126+284−59%

20Gunbarrel, COCO10,051+291+577%

21Roxborough Park, COCO9,085+317–

22Aspen, COCO6,489+346−60%

23Glenwood Springs, COCO10,395+349−70%

24Cherry Creek, COCO10,721+368–

25Redlands, COCO8,868+376−129%

26Salida, COCO5,985+430−44%

27Sheridan, COCO5,972+441−29%

28Cherry Hills, COCO6,389+455−36%

29West Pleasant View, COCO5,051+487–

30Silverthorne, COCO5,418+515−64%

31Clifton, COCO19,518+524−89%

32Breckenridge, COCO5,015+538−52%

33Fort Lupton, COCO10,402+578−64%

34Fruitvale, COCO8,019+596−65%

35Superior, COCO13,637+611−93%

36Applewood, COCO8,350+673−117%

37Gunnison, COCO6,836+706−9%

38Welby, COCO16,197+707−74%

39Woodland Park, COCO8,014+720−62%

40Derby, COCO8,453+722+90%

41Cañon City, COCO17,030+741−72%

42Fruita, COCO14,003+749−69%

43The Pinery, COCO11,871+794−66%

44Woodmoor, COCO8,934+795−76%

45Sherrelwood, COCO18,692+941−8%

46Columbine, COCO25,478+949+619%

47Battlement Mesa, COCO5,755+967−53%

48Edwards, COCO10,785+980–

49Eagle, COCO7,280+1,003−31%

50Alamosa, COCO9,849+1,026+156%

51Steamboat Springs, COCO13,557+1,136−64%

52Montrose, COCO21,583+1,159−67%

53Todd Creek, COCO5,379+1,260–

54Rifle, COCO10,844+1,265−41%

55Berkley, COCO10,789+1,329–

56Ken Caryl, COCO33,233+1,373−79%

57Mead, COCO7,042+1,376−10%

58Eaton, COCO5,848+1,437+97%

59Golden, COCO20,390+1,532−62%

60Gypsum, COCO9,212+1,563−18%

61Fairmount, COCO9,902+1,765–

62Greenwood, COCO15,323+1,766−49%

63Meridian, COCO5,634+1,816–

64Dakota Ridge, COCO33,753+1,887–

65Black Forest, COCO15,738+1,981−61%

66Twin Lakes CDP (Adams County), COCO8,030+2,125–

67Dacono, COCO6,844+2,145+171%

68Durango, COCO19,733+2,184+46%

69Wheat Ridge, COCO32,081+2,232−36%

70Northglenn, COCO38,893+2,342−47%

71Milliken, COCO9,183+2,776+111%

72Louisville, COCO20,581+2,850−57%

73Federal Heights, COCO14,075+2,915+7%

74Cimarron Hills, COCO19,817+3,150−22%

75Lochbuie, COCO8,776+3,362+282%

76Englewood, COCO35,305+3,404+45%

77Pueblo West, COCO35,681+3,449−72%

78Evans, COCO22,500+3,628−0%

79Fort Carson, COCO18,019+3,880−622%

80Littleton, COCO46,246+3,915−41%

81Fountain, COCO29,450+3,956−24%

82Lone Tree, COCO15,278+4,035–

83Severance, COCO11,841+4,518+820%

84Wellington, COCO12,169+4,758+262%

85Monument, COCO13,813+4,869+412%

86Berthoud, COCO14,080+5,227+183%

87Pueblo, COCO110,404+5,281+52%

88Security-Widefield, COCO37,345+5,757–

89Frederick, COCO18,241+5,834+294%

90Timnath, COCO11,600+5,862+11394%

91Lafayette, COCO30,116+5,958−31%

92Firestone, COCO20,129+6,234+1033%

93Brighton, COCO45,395+6,731+0%

94Highlands Ranch, COCO102,257+6,731−89%

95Grand Junction, COCO71,827+6,994−46%

96Johnstown, COCO22,433+7,416+230%

97Castle Pines, COCO15,583+7,422–

98Centennial, COCO108,658+8,041–

99Loveland, COCO81,387+9,519−28%

100Westminster, COCO116,182+10,203−61%

101Boulder, COCO105,689+10,865−4%

102Erie, COCO40,904+11,903+137%

103Longmont, COCO100,109+12,615−36%

104Lakewood, COCO156,927+13,004−26%

105Parker, COCO65,985+13,215−27%

106Windsor, COCO43,840+14,072+191%

107Greeley, COCO115,073+15,906−3%

108Commerce City, COCO72,345+16,505+265%

109Arvada, COCO122,901+17,969+38%

110Broomfield, COCO79,174+18,223+34%

111Thornton, COCO147,766+23,095−16%

112Castle Rock, COCO83,815+24,927+116%

113Fort Collins, COCO171,500+25,824−16%

114Aurora, COCO410,053+61,183+13%

115Colorado Springs, COCO494,743+62,534−22%

116Denver, COCO740,613+115,364+33%

SHOWING 1–116 OF 116

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