Ranking of Maryland Counties By Population with Other Groups Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 2.40M people in Maryland with Other Groups ancestry. Among all Maryland counties, Prince George's County had the highest population with Other Groups ancestry (595.84K), followed by Montgomery County (460.52K), and Baltimore city (328.54K).

The chart and table below shows the top 10 counties with high number of people with Other Groups 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 Other Groups Ancestry in 2021
Prince George's County
Montgomery County
Baltimore city
Baltimore County
Anne Arundel County
Howard County
Charles County
Frederick County
Harford County
Wicomico County
Ranking of Maryland Counties By Population with Other Groups Ancestry in 2021
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Rank County Population
1 Prince George's County 595842
2 Montgomery County 460523
3 Baltimore city 328535
4 Baltimore County 291395
5 Anne Arundel County 154830
6 Howard County 127941
7 Charles County 76998
8 Frederick County 64587
9 Harford County 59119
10 Wicomico County 33586
11 Washington County 33535
12 St. Mary's County 28713
13 Carroll County 24162
14 Cecil County 20038
15 Calvert County 19349
16 Allegany County 12293
17 Dorchester County 10989
18 Worcester County 9746
19 Caroline County 8900
20 Somerset County 8848
21 Queen Anne's County 8798
22 Talbot County 8447
23 Kent County 4943
24 Garrett County 2484