Maryland Counties by Population (2024)

Population

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1M

Hover/click a county for data.
County
2024 Pop.
Change (2020)
Area (mi²)
Density (/mi²)
Location
Montgomery County1,063,8810.28%1902,158Montgomery County location
Prince George's County947,880-1.81%1861,962Prince George's County location
Baltimore County843,420-1.17%2311,410Baltimore County location
Anne Arundel County595,8171.14%1601,436Anne Arundel County location
Baltimore city561,371-3.74%316,931Baltimore city location
Howard County336,6361.15%971,341Howard County location
Frederick County299,2429.7%255453Frederick County location
Harford County265,4731.62%169607Harford County location
Carroll County177,8062.81%173397Carroll County location
Charles County173,8354.25%177380Charles County location
Washington County156,3691.08%177341Washington County location
St. Mary's County115,7791.56%139323St. Mary's County location
Cecil County106,4742.58%134308Cecil County location
Wicomico County105,1141.5%144281Wicomico County location
Calvert County94,8972.13%82446Calvert County location
Allegany County67,280-1%163159Allegany County location
Worcester County54,4083.59%181116Worcester County location
Queen Anne's County53,2966.52%144143Queen Anne's County location
Talbot County37,8320.92%104141Talbot County location
Caroline County33,7591.47%123106Caroline County location
Dorchester County33,1751.98%20961Dorchester County location
Garrett County28,258-1.88%25144Garrett County location
Somerset County25,2122.65%12479Somerset County location
Kent County19,3111%10770Kent County location
  1. Maryland State Data Center
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)

Sources