RANKING · 2010 CENSUS · 64 SHOWN OF 64

Highest Welsh population share, Colorado counties · 2010

Colorado counties ranked by the share of all residents who are Welsh ancestry (2023 American Community Survey). A concentration measure: Welsh residents as a percentage of total population. This list covers the 64 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

RANKPLACESTATEPOPWELSH SHAREVS 2000

01Mineral County, COCO9105.4%–

02San Juan County, COCO8134.7%–

03Lake County, COCO7,5522.5%–

04Pitkin County, COCO16,6252.5%–

05Rio Blanco County, COCO6,6831.8%–

06Hinsdale County, COCO7531.8%–

07Park County, COCO18,3141.8%–

08Broomfield County, COCO79,1741.7%–

09Routt County, COCO25,3291.6%–

10San Miguel County, COCO7,7531.6%–

11Elbert County, COCO30,5341.6%–

12Summit County, COCO31,5171.5%–

13Jackson County, COCO1,2111.4%–

14Huerfano County, COCO7,0111.4%–

15Lincoln County, COCO5,6451.3%–

16Douglas County, COCO399,3961.3%–

17Clear Creek County, COCO8,9941.2%–

18Ouray County, COCO5,2651.2%–

19Chaffee County, COCO20,8311.2%–

20Sedgwick County, COCO2,2471.2%–

21Alamosa County, COCO16,6881.2%–

22Logan County, COCO20,6541.2%–

23La Plata County, COCO56,8981.2%–

24Grand County, COCO16,4961.2%–

25Montezuma County, COCO26,6781.2%–

26Boulder County, COCO328,5601.1%–

27Larimer County, COCO377,2921.1%–

28Conejos County, COCO7,5291.1%–

29Kit Carson County, COCO7,0691.1%–

30El Paso County, COCO757,0401.1%–

31Gunnison County, COCO17,4391.1%–

32Mesa County, COCO162,8451.1%–

33Delta County, COCO32,1781.1%–

34Jefferson County, COCO580,4511.1%–

35Garfield County, COCO63,4741.0%–

36Dolores County, COCO2,4661.0%–

37Fremont County, COCO50,0391.0%–

38Baca County, COCO3,3470.9%–

39Arapahoe County, COCO673,8200.8%–

40Denver County, COCO740,6130.8%–

41Weld County, COCO378,4260.7%–

42Teller County, COCO24,7560.7%–

43Montrose County, COCO44,5910.7%–

44Archuleta County, COCO14,3060.7%–

45Gilpin County, COCO6,0730.7%–

46Otero County, COCO17,6830.7%–

47Pueblo County, COCO169,2770.7%–

48Eagle County, COCO54,2910.6%–

49Phillips County, COCO4,4200.6%–

50Adams County, COCO554,6680.6%–

51Washington County, COCO4,7320.6%–

52Crowley County, COCO5,6770.6%–

53Bent County, COCO5,7160.6%–

54Saguache County, COCO6,7320.6%–

55Costilla County, COCO3,6790.5%–

56Las Animas County, COCO14,3910.5%–

57Cheyenne County, COCO1,7130.5%–

58Yuma County, COCO9,8960.5%–

59Prowers County, COCO11,8840.5%–

60Morgan County, COCO30,3060.4%–

61Moffat County, COCO13,1220.4%–

62Rio Grande County, COCO11,0870.4%–

63Custer County, COCO5,5900.4%–

64Kiowa County, COCO1,4120.4%–

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