Ranking of Maryland Counties By Percentage of Population with Polish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 172.30K people in Maryland with Polish ancestry (2.80% of Maryland population). Among all Maryland counties, Harford County had the highest percentage of its population with Polish ancestry (5.70%), followed by Carroll County (4.56%), and Baltimore County (4.46%).

The chart and table below shows the top 10 counties with high percentage of its population having Polish 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 Polish Ancestry in 2021
Harford County
Carroll County
Baltimore County
Cecil County
Anne Arundel County
Worcester County
Queen Anne's County
Howard County
Frederick County
Calvert County
Ranking of Maryland Counties By Percentage of Population with Polish Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Harford County 5.70
2 Carroll County 4.56
3 Baltimore County 4.46
4 Cecil County 4.32
5 Anne Arundel County 3.52
6 Worcester County 3.45
7 Queen Anne's County 3.28
8 Howard County 3.23
9 Frederick County 2.94
10 Calvert County 2.76
11 Kent County 2.62
11 Wicomico County 2.62
12 Montgomery County 2.56
13 St. Mary's County 2.41
14 Garrett County 2.40
15 Allegany County 2.36
16 Baltimore city 2.34
17 Dorchester County 2.31
18 Talbot County 2.20
19 Washington County 2.18
20 Caroline County 1.69
21 Somerset County 1.47
22 Charles County 1.36
23 Prince George's County 0.52