Ranking of Maryland Counties By Population in 2018

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2018, the Population for Maryland was 6.04M. Among all Maryland counties, Montgomery County had the highest population (1.05M), followed by Prince George's County (911.37K), and Baltimore County (828.55K).

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 2018
Montgomery
Prince George's
Baltimore
Baltimore city
Anne Arundel
Howard
Frederick
Harford
Carroll
Charles
Ranking of Maryland Counties By Population in 2018
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Rank County Population
1 Montgomery County 1048794
2 Prince George's County 911372
3 Baltimore County 828547
4 Baltimore city 603241
5 Anne Arundel County 575641
6 Howard County 322895
7 Frederick County 255698
8 Harford County 253884
9 Carroll County 168421
10 Charles County 161879
11 Washington County 150699
12 St. Mary's County 112948
13 Wicomico County 103398
14 Cecil County 102816
15 Calvert County 92131
16 Allegany County 70977
17 Worcester County 51940
18 Queen Anne's County 50279
19 Talbot County 37052
20 Caroline County 33341
21 Dorchester County 31894
22 Garrett County 29202
23 Somerset County 25637
24 Kent County 19467