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. The median across all 80 is 1,854. Biggest climber in the top 100 since 2020: Federal Heights, CO, up 36 places to #80.

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ColoradoAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01▲1Mead, COCO7,042468+249%

02▲6Milliken, COCO9,183703+218%

03▲8Dacono, COCO6,844738+127%

04▲8Delta, COCO9,802738+53%

05▲9Avon, COCO6,184743+11%

06Fort Lupton, COCO10,402803+53%

07▲10Breckenridge, COCO5,015830+108%

08▲12Trinidad, COCO8,091862−11%

09▲10Estes Park, COCO5,780863+7%

10▲15Cherry Hills, COCO6,3891,029+7%

11▲11Gypsum, COCO9,2121,042+152%

12▲3Berthoud, COCO14,0801,083+191%

13▲13Montrose, COCO21,5831,143+75%

14▲9Frederick, COCO18,2411,199+639%

15▲17Woodland Park, COCO8,0141,212+23%

16▲17Alamosa, COCO9,8491,237+24%

17▲18Eagle, COCO7,2801,246+140%

18Severance, COCO11,8411,300+1883%

19▲18Fountain, COCO29,4501,318+94%

20▲7Silverthorne, COCO5,4181,334+70%

21▲15Durango, COCO19,7331,338+42%

22▲16Steamboat Springs, COCO13,5571,371+38%

23▲17Cañon City, COCO17,0301,372+10%

24▲15Gunnison, COCO6,8361,410+26%

25▲6Firestone, COCO20,1291,448+955%

26▲3Johnstown, COCO22,4331,453+486%

27▲17Lamar, COCO7,5881,455−14%

28▲13Cortez, COCO9,1261,465+14%

29▲16Rifle, COCO10,8441,548+60%

30▲13Lone Tree, COCO15,2781,557+214%

31▼10Timnath, COCO11,6001,587+5102%

32▼2Castle Pines, COCO15,5831,624+162%

33▲23Aspen, COCO6,4891,680+10%

34Windsor, COCO43,8401,682+343%

35▲20Sterling, COCO13,0541,713+15%

36▲15Fruita, COCO14,0031,748+116%

37▲17Craig, COCO8,8741,749−3%

38▲12Grand Junction, COCO71,8271,768+71%

39▲13Glenwood Springs, COCO10,3951,781+34%

40▲18Eaton, COCO5,8481,851+117%

41▲21Greenwood, COCO15,3231,854+39%

42▲19Brush, COCO5,3371,885+4%

43▲21Pueblo, COCO110,4041,954+8%

44▼2Erie, COCO40,9041,972+550%

45▲8Commerce City, COCO72,3451,980+245%

46Monument, COCO13,8131,981+601%

47▲21Golden, COCO20,3902,116+19%

48▲12Brighton, COCO45,3952,118+117%

49▲18Evans, COCO22,5002,143+136%

50▲15Salida, COCO5,9852,144+9%

51▲23La Junta, COCO6,8642,148−9%

52▲18Fort Morgan, COCO11,8412,219+7%

53▲16Loveland, COCO81,3872,298+61%

54▲18Greeley, COCO115,0732,328+50%

55▲16Lochbuie, COCO8,7762,382+328%

56▲17Broomfield, COCO79,1742,402+107%

57▲9Castle Rock, COCO83,8152,412+314%

58▲18Colorado Springs, COCO494,7432,451+37%

59▲16Aurora, COCO410,0532,516+48%

60▲19Louisville, COCO20,5812,582+9%

61▲19Sheridan, COCO5,9722,684+7%

62▲16Parker, COCO65,9852,940+180%

63▲22Fort Collins, COCO171,5002,996+45%

64▲24Arvada, COCO122,9013,153+20%

65▲18Wellington, COCO12,1693,171+355%

66▲21Carbondale, COCO6,7623,257+30%

67▲23Lafayette, COCO30,1163,262+30%

68▲27Wheat Ridge, COCO32,0813,433−3%

69▲23Longmont, COCO100,1093,448+41%

70▲21Superior, COCO13,6373,467+51%

71▲27Centennial, COCO108,6583,603–

72▲25Lakewood, COCO156,9273,611+9%

73▲27Littleton, COCO46,2463,665+15%

74▲27Westminster, COCO116,1823,675+15%

75▲29Boulder, COCO105,6893,930+12%

76▲27Thornton, COCO147,7664,048+79%

77▲30Denver, COCO740,6134,838+34%

78▲34Northglenn, COCO38,8935,284+23%

79▲32Englewood, COCO35,3055,381+11%

80▲36Federal Heights, COCO14,0757,930+17%

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES