Ranking of Maryland Counties By Percentage of Population with Scotch Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 39.33K people in Maryland with Scotch Irish ancestry (0.64% of Maryland population). Among all Maryland counties, Talbot County had the highest percentage of its population with Scotch Irish ancestry (1.32%), followed by Garrett County (1.01%), and Frederick County (0.99%).

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

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

Data Source: US Census Bureau.
Ranking of Maryland Counties By Percentage of Population with Scotch Irish Ancestry in 2021
Talbot County
Garrett County
Frederick County
Anne Arundel County
Calvert County
Carroll County
Cecil County
Queen Anne's County
Dorchester County
Caroline County
Ranking of Maryland Counties By Percentage of Population with Scotch Irish Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Talbot County 1.32
2 Garrett County 1.01
3 Frederick County 0.99
4 Anne Arundel County 0.98
4 Calvert County 0.98
5 Carroll County 0.95
5 Cecil County 0.95
6 Queen Anne's County 0.94
7 Dorchester County 0.90
8 Caroline County 0.89
8 Kent County 0.89
9 St. Mary's County 0.87
9 Washington County 0.87
10 Howard County 0.83
11 Wicomico County 0.81
11 Worcester County 0.81
12 Allegany County 0.77
13 Harford County 0.76
14 Montgomery County 0.66
15 Baltimore County 0.57
16 Charles County 0.46
17 Somerset County 0.43
18 Baltimore city 0.36
19 Prince George's County 0.19