Birch Bay, Washington

Birch Bay, Washington
Birch Bay in 2008
Location of Birch Bay within Whatcom County, Washington
Coordinates: 48°54′56″N 122°44′50″W / 48.91556°N 122.74722°W / 48.91556; -122.74722
CountryUnited States
StateWashington
CountyWhatcom
Area
  Total
21.2 sq mi (54.9 km2)
  Land15.8 sq mi (41.0 km2)
  Water5.4 sq mi (14.0 km2)
Elevation
0 ft (0 m)
Population
 (2020)
  Total
10,115
  Density480/sq mi (180/km2)
Time zoneUTC-8 (Pacific (PST))
  Summer (DST)UTC-7 (PDT)
ZIP code
98230
Area code360
FIPS code53-06190
GNIS feature ID2407850

Birch Bay (Tsan-wuch, Say-wak) is a census-designated place (CDP) along the shore of the bay named Birch Bay in Whatcom County, Washington, United States. The population was 8,413 at the 2010 census, a 69.6% increase over the 4,961 individuals in the 2000 census. As of the 2020 census, the population was 10,115.