RANKING · 2000 CENSUS · 63 SHOWN OF 63

Most sparsely populated, Colorado counties · 2000

Colorado counties with the fewest residents per square mile (2000). This list covers the 63 counties in Colorado that qualify, ranked against each other statewide. The median across all 63 is 9.

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SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 1990

01Hinsdale County, COCO7531+69%

02Kiowa County, COCO1,4121−4%

03Mineral County, COCO9101+49%

04Jackson County, COCO1,2111−2%

05Cheyenne County, COCO1,7131−7%

06San Juan County, COCO8131−25%

07Dolores County, COCO2,4662+23%

08Baca County, COCO3,3472−1%

09Rio Blanco County, COCO6,68320%

10Saguache County, COCO6,7322+28%

11Washington County, COCO4,7322+2%

12Lincoln County, COCO5,6452+34%

13Moffat County, COCO13,1223+16%

14Costilla County, COCO3,6793+15%

15Las Animas County, COCO14,3913+10%

16Kit Carson County, COCO7,0694+12%

17Bent County, COCO5,7164+19%

18Yuma County, COCO9,8964+10%

19Gunnison County, COCO17,4394+36%

20Custer County, COCO5,5905+82%

21Huerfano County, COCO7,0115+31%

22Sedgwick County, COCO2,2475+2%

23San Miguel County, COCO7,7535+81%

24Phillips County, COCO4,4207+7%

25Conejos County, COCO7,5297+13%

26Park County, COCO18,3147+102%

27Grand County, COCO16,4967+56%

28Ouray County, COCO5,2657+63%

29Crowley County, COCO5,6777+40%

30Archuleta County, COCO14,3067+85%

31Routt County, COCO25,3298+40%

32Prowers County, COCO11,8849+9%

33Elbert County, COCO30,53411+106%

34Logan County, COCO20,65411+17%

35Montezuma County, COCO26,67812+28%

36Rio Grande County, COCO11,08714+15%

37Garfield County, COCO63,47415+46%

38Montrose County, COCO44,59115+37%

39Pitkin County, COCO16,62515+17%

40Chaffee County, COCO20,83116+28%

41Otero County, COCO17,68316+1%

42Alamosa County, COCO16,68821+10%

43Lake County, COCO7,55221+30%

44Morgan County, COCO30,30621+24%

45Clear Creek County, COCO8,99424+22%

46Delta County, COCO32,17824+33%

47Eagle County, COCO54,29125+90%

48La Plata County, COCO56,89826+36%

49Fremont County, COCO50,03930+43%

50Gilpin County, COCO6,07332+55%

51Mesa County, COCO162,84535+25%

52Teller County, COCO24,75637+65%

53Summit County, COCO31,51739+83%

54Weld County, COCO378,42645+37%

55Pueblo County, COCO169,27759+15%

56Larimer County, COCO377,29297+35%

57Douglas County, COCO399,396209+191%

58El Paso County, COCO757,040243+30%

59Adams County, COCO554,668312+37%

60Boulder County, COCO328,560401+29%

61Arapahoe County, COCO673,820612+25%

62Jefferson County, COCO580,451690+20%

63Denver County, COCO740,6133,623+19%

SHOWING 1–63 OF 63

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS