RANKING · 2020 CENSUS · 60 SHOWN OF 60

Highest Czech population share, Colorado counties · 2020

Colorado counties ranked by the share of all residents who are Czech ancestry (2023 American Community Survey). A concentration measure: Czech residents as a percentage of total population. This list covers the 60 counties in Colorado that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH SHAREVS 2000

01Huerfano County, COCO7,0112.8%–

02Custer County, COCO5,5902.3%–

03Summit County, COCO31,5171.8%–

04Sedgwick County, COCO2,2471.7%–

05Cheyenne County, COCO1,7131.7%–

06San Juan County, COCO8131.4%–

07Yuma County, COCO9,8961.3%–

08Ouray County, COCO5,2651.2%–

09Rio Blanco County, COCO6,6831.1%–

10Logan County, COCO20,6541.0%–

11Larimer County, COCO377,2920.9%–

12Jefferson County, COCO580,4510.9%–

13Douglas County, COCO399,3960.9%–

14Boulder County, COCO328,5600.8%–

15Gunnison County, COCO17,4390.8%–

16Mineral County, COCO9100.8%–

17Pitkin County, COCO16,6250.8%–

18La Plata County, COCO56,8980.8%–

19Kit Carson County, COCO7,0690.8%–

20Elbert County, COCO30,5340.7%–

21Jackson County, COCO1,2110.7%–

22Teller County, COCO24,7560.7%–

23Lincoln County, COCO5,6450.6%–

24Grand County, COCO16,4960.6%–

25Eagle County, COCO54,2910.5%–

26El Paso County, COCO757,0400.5%–

27Broomfield County, COCO79,1740.5%–

28Arapahoe County, COCO673,8200.5%–

29Denver County, COCO740,6130.5%–

30Washington County, COCO4,7320.5%–

31Fremont County, COCO50,0390.5%–

32Park County, COCO18,3140.5%–

33Las Animas County, COCO14,3910.5%–

34Adams County, COCO554,6680.5%–

35Chaffee County, COCO20,8310.5%–

36Rio Grande County, COCO11,0870.5%–

37Mesa County, COCO162,8450.4%–

38Routt County, COCO25,3290.4%–

39Weld County, COCO378,4260.4%–

40Alamosa County, COCO16,6880.4%–

41Otero County, COCO17,6830.4%–

42Prowers County, COCO11,8840.4%–

43Montrose County, COCO44,5910.4%–

44Hinsdale County, COCO7530.4%–

45Moffat County, COCO13,1220.4%–

46Morgan County, COCO30,3060.3%–

47Lake County, COCO7,5520.3%–

48Pueblo County, COCO169,2770.3%–

49Clear Creek County, COCO8,9940.3%–

50Montezuma County, COCO26,6780.2%–

51San Miguel County, COCO7,7530.2%–

52Crowley County, COCO5,6770.2%–

53Garfield County, COCO63,4740.2%–

54Gilpin County, COCO6,0730.2%–

55Dolores County, COCO2,4660.2%–

56Delta County, COCO32,1780.1%–

57Archuleta County, COCO14,3060.1%–

58Bent County, COCO5,7160.1%–

59Baca County, COCO3,3470.1%–

60Conejos County, COCO7,5290.0%–

SHOWING 1–60 OF 60

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