“Metropolitan Statistical Areas have at least one urbanized area of 50,000 or more population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties.”
Mike also shared a link to an interactive map from the Census Bureau that shows net gains and losses of HoCo population migration. For example, the map shows that HoCo has had a net gain of population from
Montgomery and Prince George’s
counties but a net loss to Carroll, Anne Arundel and Baltimore counties.