Ranking of California Counties By Percentage of Population with Scottish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 456.71K people in California with Scottish ancestry (1.16% of California population). Among all California counties, Calaveras County had the highest percentage of its population with Scottish ancestry (4.34%), followed by Inyo County (3.58%), and Mono County (3.39%).

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

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

Data Source: US Census Bureau.
Ranking of California Counties By Percentage of Population with Scottish Ancestry in 2021
Calaveras County
Inyo County
Mono County
Tuolumne County
Modoc County
Mendocino County
Humboldt County
San Luis Obispo County
Plumas County
Glenn County
Ranking of California Counties By Percentage of Population with Scottish Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Calaveras County 4.34
2 Inyo County 3.58
3 Mono County 3.39
4 Tuolumne County 3.27
5 Modoc County 3.06
6 Mendocino County 3.01
7 Humboldt County 2.97
8 San Luis Obispo County 2.95
9 Plumas County 2.85
10 Glenn County 2.79
10 Nevada County 2.79
11 Marin County 2.74
12 El Dorado County 2.60
13 Siskiyou County 2.51
14 Sonoma County 2.48
15 Butte County 2.47
16 Santa Cruz County 2.38
17 Trinity County 2.31
18 Placer County 2.29
19 Mariposa County 2.24
20 Del Norte County 2.18
21 Sierra County 2.08
22 Amador County 1.97
22 Lake County 1.97
22 Shasta County 1.97
23 Sutter County 1.87
24 Lassen County 1.85
25 Tehama County 1.75
26 Santa Barbara County 1.74
27 Yolo County 1.69
28 Napa County 1.67
29 Contra Costa County 1.51
29 Ventura County 1.51
29 Yuba County 1.51
30 Madera County 1.48
31 San Diego County 1.43
32 Alpine County 1.41
33 Colusa County 1.39
34 Orange County 1.28
34 Sacramento County 1.28
34 San Benito County 1.28
35 San Francisco County 1.25
36 San Mateo County 1.22
37 Alameda County 1.14
38 Monterey County 1.11
38 Riverside County 1.11
39 Solano County 1.08
40 Kern County 1.04
41 San Joaquin County 0.94
42 Santa Clara County 0.93
43 Stanislaus County 0.91
44 Fresno County 0.82
45 San Bernardino County 0.77
46 Kings County 0.74
47 Los Angeles County 0.71
48 Tulare County 0.66
49 Merced County 0.62
50 Imperial County 0.39