Maryland Net Migration By County in 2021

Updated on June 21, 2025.

According to the US Census Bureau estimates, in 2021, the net migration for Maryland was -8,725. Frederick County had the highest net migration (7,118) followed by Harford County (2,008), and Charles County (1,662). On the other hand, Prince George's County had the lowest net migration (-11,763), followed by Montgomery County (-8,998), and Baltimore city (-6,001).

Net migration for a county refers to the difference between the number of migrants, both domestic and international, moving to the county and those leaving the county. Or to put it simply, the net migration for a given county is the inbound migration minus the outbound migration for that county.

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

Hover over or click on the chart to see this information for each county. The data can also be filtered, sorted, and explored further in a table below.

See this for other years:
Maryland Net Migration By County in 2021
Maryland Net Migration By County in 2021
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County Net Migration
Allegany 209
Anne Arundel 784
Baltimore -2605
Calvert 1200
Caroline 141
Carroll 1362
Cecil 350
Charles 1662
Dorchester 151
Frederick 7118
Garrett 131
Harford 2008
Howard 1050
Kent 311
Montgomery -8998
Prince George's -11763
Queen Anne's 879
St. Mary's 229
Somerset 92
Talbot 501
Washington 693
Wicomico 507
Worcester 1264
Baltimore city -6001