RANKING · 2025 ESTIMATES · 80 SHOWN OF 80

Most sparsely populated, Colorado cities

Colorado cities with the fewest residents per square mile (2025). This list covers the 80 cities in Colorado that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most population gained Most population lost Most densely populated

RANKPLACESTATEPOPPOPULATION DENSITYVS –

01Mead, COCO7,042468–

02Milliken, COCO9,183703–

03Dacono, COCO6,844738–

04Delta, COCO9,802738–

05Avon, COCO6,184743–

06Fort Lupton, COCO10,402803–

07Breckenridge, COCO5,015830–

08Trinidad, COCO8,091862–

09Estes Park, COCO5,780863–

10Cherry Hills, COCO6,3891,029–

11Gypsum, COCO9,2121,042–

12Berthoud, COCO14,0801,083–

13Montrose, COCO21,5831,143–

14Frederick, COCO18,2411,199–

15Woodland Park, COCO8,0141,212–

16Alamosa, COCO9,8491,237–

17Eagle, COCO7,2801,246–

18Severance, COCO11,8411,300–

19Fountain, COCO29,4501,318–

20Silverthorne, COCO5,4181,334–

21Durango, COCO19,7331,338–

22Steamboat Springs, COCO13,5571,371–

23Cañon City, COCO17,0301,372–

24Gunnison, COCO6,8361,410–

25Firestone, COCO20,1291,448–

26Johnstown, COCO22,4331,453–

27Lamar, COCO7,5881,455–

28Cortez, COCO9,1261,465–

29Rifle, COCO10,8441,548–

30Lone Tree, COCO15,2781,557–

31Timnath, COCO11,6001,587–

32Castle Pines, COCO15,5831,624–

33Aspen, COCO6,4891,680–

34Windsor, COCO43,8401,682–

35Sterling, COCO13,0541,713–

36Fruita, COCO14,0031,748–

37Craig, COCO8,8741,749–

38Grand Junction, COCO71,8271,768–

39Glenwood Springs, COCO10,3951,781–

40Eaton, COCO5,8481,851–

41Greenwood, COCO15,3231,854–

42Brush, COCO5,3371,885–

43Pueblo, COCO110,4041,954–

44Erie, COCO40,9041,972–

45Commerce City, COCO72,3451,980–

46Monument, COCO13,8131,981–

47Golden, COCO20,3902,116–

48Brighton, COCO45,3952,118–

49Evans, COCO22,5002,143–

50Salida, COCO5,9852,144–

51La Junta, COCO6,8642,148–

52Fort Morgan, COCO11,8412,219–

53Loveland, COCO81,3872,298–

54Greeley, COCO115,0732,328–

55Lochbuie, COCO8,7762,382–

56Broomfield, COCO79,1742,402–

57Castle Rock, COCO83,8152,412–

58Colorado Springs, COCO494,7432,451–

59Aurora, COCO410,0532,516–

60Louisville, COCO20,5812,582–

61Sheridan, COCO5,9722,684–

62Parker, COCO65,9852,940–

63Fort Collins, COCO171,5002,996–

64Arvada, COCO122,9013,153–

65Wellington, COCO12,1693,171–

66Carbondale, COCO6,7623,257–

67Lafayette, COCO30,1163,262–

68Wheat Ridge, COCO32,0813,433–

69Longmont, COCO100,1093,448–

70Superior, COCO13,6373,467–

71Centennial, COCO108,6583,603–

72Lakewood, COCO156,9273,611–

73Littleton, COCO46,2463,665–

74Westminster, COCO116,1823,675–

75Boulder, COCO105,6893,930–

76Thornton, COCO147,7664,048–

77Denver, COCO740,6134,838–

78Northglenn, COCO38,8935,284–

79Englewood, COCO35,3055,381–

80Federal Heights, COCO14,0757,930–

SHOWING 1–80 OF 80

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