Ranking of Maryland Counties By Population with Celtic Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 917 people in Maryland with Celtic ancestry. Among all Maryland counties, Montgomery County had the highest population with Celtic ancestry (207), followed by Carroll County (111), and Anne Arundel County (84).

The chart and table below shows the top 10 counties with high number of people with Celtic 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 Population with Celtic Ancestry in 2021
Montgomery County
Carroll County
Anne Arundel County
Prince George's County
Washington County
Harford County
Frederick County
Cecil County
Baltimore city
Baltimore County
Ranking of Maryland Counties By Population with Celtic Ancestry in 2021
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Rank County Population
1 Montgomery County 207
2 Carroll County 111
3 Anne Arundel County 84
4 Prince George's County 66
5 Washington County 55
6 Harford County 52
7 Frederick County 46
8 Cecil County 44
9 Baltimore city 38
10 Baltimore County 35
10 St. Mary's County 35
11 Howard County 31
12 Caroline County 21
12 Somerset County 21
13 Allegany County 18
14 Wicomico County 17
15 Calvert County 16
16 Dorchester County 10
17 Charles County 8
18 Garrett County 2