Maryland Citizen Population By County in 2013 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2013, the citizen population for Maryland was 5,400,150 and represented 92.56% of the total Maryland population.

Among all Maryland counties, Montgomery had the highest citizen population (827.58K), followed by Baltimore (765.82K), and Prince George's (765.35K).

In terms of percentages, Garrett had the highest percentage of its population being citizens (99.32%), followed by Calvert (99.11%), and Allegany (98.79%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.

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Maryland Citizen Population By County in 2013
Maryland Citizen Population By County in 2013
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County Citizen Population % of County Population
Montgomery 827575 83.64
Baltimore 765815 94.28
Prince George's 765350 87.62
Baltimore city 592955 95.42
Anne Arundel 522400 95.95
Howard 269470 91.71
Harford 242170 98.18
Frederick 224240 94.75
Carroll 165045 98.68
Washington 144915 97.63
Charles 144855 97.25
St. Mary's 105510 98.53
Cecil 99905 98.49
Wicomico 94520 94.82
Calvert 88535 99.11
Allegany 73495 98.79
Worcester 50055 97.23
Queen Anne's 47545 98.71
Talbot 36910 97.49
Caroline 31860 96.93
Dorchester 31835 97.61
Garrett 29810 99.32
Somerset 25780 97.86
Kent 19605 97.39