Montgomery County Flag

Montgomery County

State:
Maryland
County Seat:
Rockville

Montgomery County's estimated 2025 population is 1,069,288 with a growth rate of 0.51% in the past year according to the most recent United States census data. Montgomery County is the 1st largest county in Maryland. The 2010 population was 975,619 and has seen a growth of 9.6% since that time.

1,069,288
Total Population
2,169
Population Density (mi²)
1
Population Rank (State)
5.4K 0.51%
Annual Population Growth

Montgomery County Population

Demographics

Economics and Income Statistics