RANKING · 2025 ACS · 80 SHOWN OF 80

Most densely populated, Colorado cities

Colorado cities ranked by residents per square mile (2023). 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 sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Federal Heights, COCO14,0757,930+17%

02Englewood, COCO35,3055,381+11%

03Northglenn, COCO38,8935,284+23%

04Denver, COCO740,6134,838+34%

05Thornton, COCO147,7664,048+79%

06Boulder, COCO105,6893,930+12%

07Westminster, COCO116,1823,675+15%

08Littleton, COCO46,2463,665+15%

09Lakewood, COCO156,9273,611+9%

10Centennial, COCO108,6583,603–

11Superior, COCO13,6373,467+51%

12Longmont, COCO100,1093,448+41%

13Wheat Ridge, COCO32,0813,433−3%

14Lafayette, COCO30,1163,262+30%

15Carbondale, COCO6,7623,257+30%

16Wellington, COCO12,1693,171+355%

17Arvada, COCO122,9013,153+20%

18Fort Collins, COCO171,5002,996+45%

19Parker, COCO65,9852,940+180%

20Sheridan, COCO5,9722,684+7%

21Louisville, COCO20,5812,582+9%

22Aurora, COCO410,0532,516+48%

23Colorado Springs, COCO494,7432,451+37%

24Castle Rock, COCO83,8152,412+314%

25Broomfield, COCO79,1742,402+107%

26Lochbuie, COCO8,7762,382+328%

27Greeley, COCO115,0732,328+50%

28Loveland, COCO81,3872,298+61%

29Fort Morgan, COCO11,8412,219+7%

30La Junta, COCO6,8642,148−9%

31Salida, COCO5,9852,144+9%

32Evans, COCO22,5002,143+136%

33Brighton, COCO45,3952,118+117%

34Golden, COCO20,3902,116+19%

35Monument, COCO13,8131,981+601%

36Commerce City, COCO72,3451,980+245%

37Erie, COCO40,9041,972+550%

38Pueblo, COCO110,4041,954+8%

39Brush, COCO5,3371,885+4%

40Greenwood, COCO15,3231,854+39%

41Eaton, COCO5,8481,851+117%

42Glenwood Springs, COCO10,3951,781+34%

43Grand Junction, COCO71,8271,768+71%

44Craig, COCO8,8741,749−3%

45Fruita, COCO14,0031,748+116%

46Sterling, COCO13,0541,713+15%

47Windsor, COCO43,8401,682+343%

48Aspen, COCO6,4891,680+10%

49Castle Pines, COCO15,5831,624+162%

50Timnath, COCO11,6001,587+5102%

51Lone Tree, COCO15,2781,557+214%

52Rifle, COCO10,8441,548+60%

53Cortez, COCO9,1261,465+14%

54Lamar, COCO7,5881,455−14%

55Johnstown, COCO22,4331,453+486%

56Firestone, COCO20,1291,448+955%

57Gunnison, COCO6,8361,410+26%

58Cañon City, COCO17,0301,372+10%

59Steamboat Springs, COCO13,5571,371+38%

60Durango, COCO19,7331,338+42%

61Silverthorne, COCO5,4181,334+70%

62Fountain, COCO29,4501,318+94%

63Severance, COCO11,8411,300+1883%

64Eagle, COCO7,2801,246+140%

65Alamosa, COCO9,8491,237+24%

66Woodland Park, COCO8,0141,212+23%

67Frederick, COCO18,2411,199+639%

68Montrose, COCO21,5831,143+75%

69Berthoud, COCO14,0801,083+191%

70Gypsum, COCO9,2121,042+152%

71Cherry Hills, COCO6,3891,029+7%

72Estes Park, COCO5,780863+7%

73Trinidad, COCO8,091862−11%

74Breckenridge, COCO5,015830+108%

75Fort Lupton, COCO10,402803+53%

76Avon, COCO6,184743+11%

77Delta, COCO9,802738+53%

78Dacono, COCO6,844738+127%

79Milliken, COCO9,183703+218%

80Mead, COCO7,042468+249%

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES