Whatcom County Flag

Whatcom County

State:
Washington
County Seat:
Bellingham

Whatcom County's estimated 2025 population is 237,222 with a growth rate of 0.97% in the past year according to the most recent United States census data. Whatcom County is the 9th largest county in Washington. The 2010 population was 201,549 and has seen a growth of 17.7% since that time.

237,222
Total Population
113
Population Density (mi²)
9
Population Rank (State)
2.3K 0.97%
Annual Population Growth

Whatcom 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)