RANKING · 2010 CENSUS · 44 SHOWN OF 44

Highest Welsh population share, Idaho counties · 2010

Idaho counties ranked by the share of all residents who are Welsh ancestry (2010 American Community Survey). A concentration measure: Welsh residents as a percentage of total population. This list covers the 44 counties in Idaho that qualify, ranked against each other statewide. The median across all 44 is 1.5%.

Welsh Americans: full group profile →

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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 –

01Oneida County, IDID5,08515.1%–

02Butte County, IDID2,7834.4%–

03Valley County, IDID12,8313.5%–

04Madison County, IDID55,1723.1%–

05Adams County, IDID5,0132.6%–

06Franklin County, IDID15,8892.6%–

07Custer County, IDID4,6362.5%–

08Bannock County, IDID91,5912.5%–

09Power County, IDID8,2462.3%–

10Lemhi County, IDID8,4742.2%–

11Latah County, IDID41,8422.2%–

12Clark County, IDID7832.1%–

13Caribou County, IDID7,2522.0%–

14Shoshone County, IDID14,1301.9%–

15Bonneville County, IDID135,7711.8%–

16Jefferson County, IDID35,2971.6%–

17Bear Lake County, IDID6,7271.6%–

18Ada County, IDID546,1411.6%–

19Gem County, IDID21,7731.5%–

20Fremont County, IDID14,2081.5%–

21Nez Perce County, IDID42,9051.5%–

22Bingham County, IDID51,1531.5%–

23Gooding County, IDID16,4461.4%–

24Boundary County, IDID13,9971.3%–

25Blaine County, IDID25,5171.2%–

26Payette County, IDID27,8241.2%–

27Owyhee County, IDID12,6611.1%–

28Boise County, IDID8,5451.1%–

29Canyon County, IDID275,1231.0%–

30Kootenai County, IDID191,8641.0%–

31Cassia County, IDID26,3971.0%–

32Jerome County, IDID26,3621.0%–

33Clearwater County, IDID9,1181.0%–

34Teton County, IDID13,2540.9%–

35Idaho County, IDID17,8740.9%–

36Washington County, IDID11,5830.9%–

37Benewah County, IDID10,5080.8%–

38Elmore County, IDID29,4650.7%–

39Twin Falls County, IDID97,5390.7%–

40Minidoka County, IDID22,9110.6%–

41Lincoln County, IDID5,6030.4%–

42Camas County, IDID1,3160.3%–

43Bonner County, IDID54,4200.3%–

44Lewis County, IDID3,7040.3%–

SHOWING 1–44 OF 44

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