Maryland Citizen Population By County in 2021 (ACS-5Yrs)

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen population for Maryland was 5,713,460 and represented 92.92% of the total Maryland population.

Among all Maryland counties, Montgomery had the highest citizen population (910.87K), followed by Prince George's (833.06K), and Baltimore (806.88K).

In terms of percentages, Garrett had the highest percentage of its population being citizens (99.47%), followed by Allegany (99.20%), and Calvert (98.91%).

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.