Missoula County Flag

Missoula County

State:
Montana
County Seat:
Missoula

Missoula County's estimated 2025 population is 123,420 with a growth rate of 0.71% in the past year according to the most recent United States census data. Missoula County is the 3rd largest county in Montana. The 2010 population was 109,471 and has seen a growth of 12.74% since that time.

123,420
Total Population
48
Population Density (mi²)
3
Population Rank (State)
874 0.71%
Annual Population Growth

Missoula County Population

Demographics

Economics and Income Statistics

Sources

  1. City and Town Population Totals: 2020-2024
  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)