Maryland 2020 Census Population Density By County Map

Updated on October 16, 2023.

The population density of Maryland from the 2020 Census was 636.09, based on data from the US Census Bureau.

Baltimore city had the highest population density (7,235.78), followed by Montgomery County (2,153.8), and then Prince George's County (2,003.94). On the other hand, the 3 counties with the lowest population density were: Garrett County (44.38), Dorchester County (60.16), and Kent County (69.3).

You can also see this information for other states and also for the US by state.

Hover over or click on the counties to see the population density for each county. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

Maryland 2020 Census Population Density By County
Maryland 2020 Census Population Density By County
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County Population Density
Allegany 161.31
Anne Arundel 1418.15
Baltimore 1428.13
Calvert 435.21
Caroline 104.22
Carroll 386.24
Cecil 299.52
Charles 363.93
Dorchester 60.16
Frederick 411.32
Garrett 44.38
Harford 596.91
Howard 1324.24
Kent 69.30
Montgomery 2153.80
Prince George's 2003.94
Queen Anne's 134.18
St. Mary's 317.27
Somerset 77.00
Talbot 139.73
Washington 337.96
Wicomico 276.66
Worcester 112.00
Baltimore city 7235.78