Baltimore County Flag

Baltimore County

State:
Maryland
County Seat:
Baltimore

Baltimore County's estimated 2026 population is 859,923 with a growth rate of 0.44% in the past year according to the most recent United States census data. Baltimore County is the 3rd largest county in Maryland. The 2010 population was 806,654 and has seen a growth of 6.6% since that time.

859,923
Total Population
1,438
Population Density (mi²)
3
Population Rank (State)
3.7K 0.44%
Annual Population Growth

Baltimore County Population

Demographics

Economics and Income Statistics