RANKING · 2024 ACS · 44 SHOWN OF 44

Largest Welsh population, Idaho counties

Idaho counties ranked by the number of residents who are Welsh ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 44 counties in Idaho that qualify, ranked against each other statewide.

Welsh Americans: full group profile →

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 POPULATIONVS 2010

01Ada County, IDID546,1416,496+9%

02Bonneville County, IDID135,7712,004+10%

03Kootenai County, IDID191,8641,963+45%

04Canyon County, IDID275,1231,650−12%

05Bannock County, IDID91,5911,636−18%

06Madison County, IDID55,1721,283+13%

07Twin Falls County, IDID97,539980+92%

08Bingham County, IDID51,153831+27%

09Oneida County, IDID5,085762+19%

10Nez Perce County, IDID42,905603+4%

11Jefferson County, IDID35,297601+51%

12Latah County, IDID41,842397−50%

13Cassia County, IDID26,397329+49%

14Bonner County, IDID54,420326+159%

15Payette County, IDID27,824284+9%

16Valley County, IDID12,831267−22%

17Franklin County, IDID15,889257−21%

18Elmore County, IDID29,465240+21%

19Caribou County, IDID7,252228+64%

20Shoshone County, IDID14,130222−8%

21Fremont County, IDID14,208190−4%

22Minidoka County, IDID22,911173+43%

23Clearwater County, IDID9,118163+94%

24Washington County, IDID11,583136+58%

25Power County, IDID8,246133−24%

26Bear Lake County, IDID6,727120+26%

27Idaho County, IDID17,874118−16%

28Blaine County, IDID25,517116−54%

29Gem County, IDID21,773115−56%

30Teton County, IDID13,254114+33%

31Jerome County, IDID26,362103−50%

32Gooding County, IDID16,44693−57%

33Lemhi County, IDID8,47478−55%

34Boise County, IDID8,54574−3%

35Owyhee County, IDID12,66161−53%

36Lincoln County, IDID5,60353+152%

37Custer County, IDID4,63641−62%

38Butte County, IDID2,78340−68%

39Benewah County, IDID10,50836−50%

40Adams County, IDID5,01331−70%

41Boundary County, IDID13,99723−84%

42Lewis County, IDID3,70422+100%

43Clark County, IDID78311−39%

44Camas County, IDID1,3167+75%

SHOWING 1–44 OF 44

Download CSV (full list, 44 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES