Maryland Citizen Voting-age Population By County in 2010 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2010, the citizen voting-age population for Maryland was 3,964,250 and represented 69.59% of the total Maryland population.

Among all Maryland counties, Baltimore had the highest citizen voting-age population (584.42K), followed by Montgomery (576.61K), and Prince George's (548.54K).

In terms of percentages, Allegany had the highest percentage of its population being citizens of voting-age (80.96%), followed by Somerset (80.16%), and Kent (79.32%).

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

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

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Maryland Citizen Voting-age Population By County in 2010
Maryland Citizen Voting-age Population By County in 2010
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County Citizen Voting-age Population % of County Population
Baltimore 584425 73.13
Montgomery 576605 60.87
Prince George's 548540 64.18
Baltimore city 457365 73.70
Anne Arundel 384845 73.02
Howard 186425 66.73
Harford 177260 72.98
Frederick 159900 69.76
Carroll 122285 73.13
Washington 110170 75.29
Charles 102330 71.11
St. Mary's 73400 71.90
Cecil 73320 73.22
Wicomico 71485 73.73
Calvert 63070 71.76
Allegany 60425 80.96
Worcester 40315 78.84
Queen Anne's 34735 73.99
Talbot 29010 77.65
Dorchester 24720 76.57
Caroline 23425 71.41
Garrett 23140 76.76
Somerset 21170 80.16
Kent 15880 79.32