Ranking of Idaho Counties By Percentage of Population with Swedish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 48.02K people in Idaho with Swedish ancestry (2.65% of Idaho population). Among all Idaho counties, Caribou County had the highest percentage of its population with Swedish ancestry (6.14%), followed by Bear Lake County (5.82%), and Fremont County (5.12%).

The chart and table below shows the top 10 counties with high percentage of its population having Swedish ancestry.

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

Data Source: US Census Bureau.
Ranking of Idaho Counties By Percentage of Population with Swedish Ancestry in 2021
Caribou County
Bear Lake County
Fremont County
Teton County
Jefferson County
Latah County
Oneida County
Lemhi County
Madison County
Idaho County
Ranking of Idaho Counties By Percentage of Population with Swedish Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Caribou County 6.14
2 Bear Lake County 5.82
3 Fremont County 5.12
4 Teton County 5.11
5 Jefferson County 4.74
6 Latah County 4.47
7 Oneida County 4.10
8 Lemhi County 3.99
8 Madison County 3.99
9 Idaho County 3.95
10 Bonneville County 3.69
11 Bannock County 3.35
12 Clearwater County 3.34
13 Custer County 3.28
14 Cassia County 3.13
15 Shoshone County 3.09
16 Bonner County 3.02
17 Nez Perce County 2.73
18 Lewis County 2.66
19 Power County 2.64
20 Ada County 2.60
21 Franklin County 2.42
21 Owyhee County 2.42
22 Camas County 2.40
23 Benewah County 2.28
24 Bingham County 2.24
24 Washington County 2.24
25 Adams County 2.20
26 Twin Falls County 2.15
27 Elmore County 2.14
28 Canyon County 2.09
29 Kootenai County 2.05
30 Boundary County 1.90
31 Gem County 1.79
32 Butte County 1.75
33 Valley County 1.45
34 Jerome County 1.40
35 Minidoka County 1.36
36 Payette County 1.26
37 Boise County 1.21
38 Gooding County 1.09
39 Clark County 0.83
40 Lincoln County 0.71
41 Blaine County 0.59