Maryland Population By County in 2017

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2017, the population of Maryland was 6,028,186. Among all Maryland counties, Montgomery[object Promise] had the highest population (1,047,239), followed by Prince George's[object Promise] (910,946), and Baltimore[object Promise] (828,956). Kent[object Promise] was the least populated county (19,486).

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

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

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Maryland Population By County in 2017
Maryland Population By County in 2017
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County Population % of State Population
Allegany 71363 1.18
Anne Arundel 571359 9.48
Baltimore 828956 13.75
Calvert 91492 1.52
Caroline 33122 0.55
Carroll 167687 2.78
Cecil 102509 1.70
Charles 159718 2.65
Dorchester 32093 0.53
Frederick 251037 4.16
Garrett 29276 0.49
Harford 251948 4.18
Howard 319409 5.30
Kent 19486 0.32
Montgomery 1047239 17.37
Prince George's 910946 15.11
Queen Anne's 49648 0.82
St. Mary's 112627 1.87
Somerset 25922 0.43
Talbot 37057 0.62
Washington 150247 2.49
Wicomico 102471 1.70
Worcester 51721 0.86
Baltimore city 610853 10.13