Ranking of Idaho Counties By Population with Welsh Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 24.99K people in Idaho with Welsh ancestry. Among all Idaho counties, Ada County had the highest population with Welsh ancestry (6.98K), followed by Bonneville County (2.27K), and Kootenai County (2.20K).

The chart and table below shows the top 10 counties with high number of people with Welsh ancestry.

You can see similar information for other states and for other ancestry groups in Idaho.

You may also be interested in:
Ranking of Idaho Counties By Percentage of Population with Welsh Ancestry in 2021

Related Topics: Idaho ACS-5Yrs Estimates, 2021 Topic List.

Data Source: US Census Bureau.

Ranking of Idaho Counties By Population with Welsh Ancestry in 2021

Ada County

Bonneville County

Kootenai County

Bannock County

Madison County

Canyon County

Twin Falls County

Bingham County

Oneida County

Jefferson County

Ranking of Idaho Counties By Population with Welsh Ancestry in 2021

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Rank	County	Population
1	Ada County	6981
2	Bonneville County	2267
3	Kootenai County	2198
4	Bannock County	1963
5	Madison County	1626
6	Canyon County	1561
7	Twin Falls County	1020
8	Bingham County	791
9	Oneida County	771
10	Jefferson County	748
11	Nez Perce County	543
12	Franklin County	473
13	Bonner County	381
14	Cassia County	359
15	Latah County	296
16	Valley County	292
17	Elmore County	260
18	Bear Lake County	192
19	Fremont County	177
20	Payette County	156
21	Boise County	145
21	Gem County	145
22	Clearwater County	128
23	Minidoka County	122
24	Idaho County	114
25	Blaine County	112
26	Teton County	105
26	Washington County	105
27	Caribou County	99
28	Butte County	95
29	Gooding County	88
30	Owyhee County	87
31	Lemhi County	77
32	Jerome County	76
33	Power County	70
33	Shoshone County	70
34	Benewah County	69
35	Custer County	52
36	Lewis County	51
37	Lincoln County	45
38	Boundary County	30
39	Adams County	21
40	Clark County	19
41	Camas County	5