Ranking of Maryland Counties By Population in 2015

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2015, the Population for Maryland was 5.99M. Among all Maryland counties, Montgomery County had the highest population (1.03M), followed by Prince George's County (906.75K), and Baltimore County (827.80K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Maryland counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Maryland Counties By Population in 2015
Montgomery
Prince George's
Baltimore
Baltimore city
Anne Arundel
Howard
Harford
Frederick
Carroll
Charles
Ranking of Maryland Counties By Population in 2015
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Rank County Population
1 Montgomery County 1033370
2 Prince George's County 906754
3 Baltimore County 827796
4 Baltimore city 622831
5 Anne Arundel County 563133
6 Howard County 311417
7 Harford County 249690
8 Frederick County 245145
9 Carroll County 167201
10 Charles County 155775
11 Washington County 149160
12 St. Mary's County 111092
13 Cecil County 102453
14 Wicomico County 101820
15 Calvert County 90542
16 Allegany County 72501
17 Worcester County 51472
18 Queen Anne's County 49012
19 Talbot County 37431
20 Caroline County 32601
21 Dorchester County 32431
22 Garrett County 29451
23 Somerset County 25705
24 Kent County 19745