Maryland Population By County in 2023

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2023, the population of Maryland was 6,180,253. Among all Maryland counties, Montgomery had the highest population (1,058,474), followed by Prince George's (947,430), and Baltimore (844,703). Kent was the least populated county (19,303).

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 2023
Maryland Population By County in 2023
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County Population % of State Population
Allegany 67273 1.09
Anne Arundel 594582 9.62
Baltimore 844703 13.67
Calvert 94728 1.53
Caroline 33593 0.54
Carroll 176639 2.86
Cecil 105672 1.71
Charles 171973 2.78
Dorchester 32879 0.53
Frederick 293391 4.75
Garrett 28423 0.46
Harford 264644 4.28
Howard 336001 5.44
Kent 19303 0.31
Montgomery 1058474 17.13
Prince George's 947430 15.33
Queen Anne's 52508 0.85
St. Mary's 115281 1.87
Somerset 24910 0.40
Talbot 37823 0.61
Washington 155813 2.52
Wicomico 104800 1.70
Worcester 54171 0.88
Baltimore city 565239 9.15