RANKING · 2020 CENSUS · 44 SHOWN OF 44

Highest Welsh population share, Idaho counties · 2020

Idaho 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 44 counties in Idaho that qualify, ranked against each other statewide.

IdahoAll states All rankings

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

01Oneida County, IDID5,08514.6%–

02Clark County, IDID7833.4%–

03Butte County, IDID2,7833.4%–

04Franklin County, IDID15,8893.3%–

05Valley County, IDID12,8312.8%–

06Bear Lake County, IDID6,7272.8%–

07Bannock County, IDID91,5912.5%–

08Jefferson County, IDID35,2972.4%–

09Madison County, IDID55,1722.2%–

10Bonneville County, IDID135,7712.0%–

11Custer County, IDID4,6361.8%–

12Kootenai County, IDID191,8641.7%–

13Cassia County, IDID26,3971.7%–

14Boise County, IDID8,5451.5%–

15Lemhi County, IDID8,4741.5%–

16Lewis County, IDID3,7041.4%–

17Ada County, IDID546,1411.4%–

18Jerome County, IDID26,3621.3%–

19Clearwater County, IDID9,1181.2%–

20Bingham County, IDID51,1531.2%–

21Twin Falls County, IDID97,5391.2%–

22Adams County, IDID5,0131.2%–

23Nez Perce County, IDID42,9051.1%–

24Bonner County, IDID54,4201.1%–

25Fremont County, IDID14,2081.1%–

26Elmore County, IDID29,4651.1%–

27Washington County, IDID11,5831.1%–

28Caribou County, IDID7,2521.1%–

29Teton County, IDID13,2541.0%–

30Gem County, IDID21,7731.0%–

31Shoshone County, IDID14,1300.9%–

32Payette County, IDID27,8240.8%–

33Owyhee County, IDID12,6610.8%–

34Idaho County, IDID17,8740.8%–

35Latah County, IDID41,8420.7%–

36Canyon County, IDID275,1230.6%–

37Benewah County, IDID10,5080.6%–

38Blaine County, IDID25,5170.6%–

39Camas County, IDID1,3160.6%–

40Power County, IDID8,2460.5%–

41Lincoln County, IDID5,6030.4%–

42Gooding County, IDID16,4460.4%–

43Minidoka County, IDID22,9110.4%–

44Boundary County, IDID13,9970.4%–

SHOWING 1–44 OF 44

Download CSV (full list, 44 rows)

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