Ranking of Idaho Counties By Population with British Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 16.53K people in Idaho with British ancestry. Among all Idaho counties, Ada County had the highest population with British ancestry (4.43K), followed by Kootenai County (2.01K), and Bonneville County (1.81K).

The chart and table below shows the top 10 counties with high number of people with British 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 British Ancestry in 2021

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

Data Source: US Census Bureau.

Ranking of Idaho Counties By Population with British Ancestry in 2021

Ada County

Kootenai County

Bonneville County

Canyon County

Bannock County

Madison County

Bonner County

Bingham County

Twin Falls County

Gem County

Ranking of Idaho Counties By Population with British Ancestry in 2021

0 of 0

Rank	County	Population
1	Ada County	4425
2	Kootenai County	2005
3	Bonneville County	1805
4	Canyon County	1236
5	Bannock County	1168
6	Madison County	865
7	Bonner County	732
8	Bingham County	608
9	Twin Falls County	313
10	Gem County	301
11	Latah County	282
12	Teton County	257
13	Nez Perce County	217
14	Cassia County	184
15	Jefferson County	174
16	Idaho County	168
17	Franklin County	155
18	Owyhee County	153
19	Shoshone County	141
20	Minidoka County	127
21	Payette County	125
22	Jerome County	118
23	Boundary County	109
24	Elmore County	107
25	Valley County	102
26	Custer County	93
26	Lemhi County	93
27	Blaine County	92
28	Caribou County	68
29	Clearwater County	67
30	Bear Lake County	48
31	Washington County	35
32	Benewah County	32
32	Gooding County	32
33	Oneida County	28
34	Fremont County	27
35	Power County	10
36	Lewis County	9
37	Lincoln County	8
38	Boise County	7
39	Camas County	2
39	Clark County	2
40	Butte County	1