
Blaine
- County:
- Whatcom County
- County Seat:
- No
- Area (mi²):
- 5.586
- State:
- Washington
Blaine is a city located in Whatcom County, Washington. Blaine has a 2025 population of 6,453. Blaine is currently growing at a rate of 1.75% annually and its population has increased by 9.37% since the most recent census, which recorded a population of 5,900 in 2020.
The average household income in Blaine is $111,412 with a poverty rate of 11.85%. The median age in Blaine is 41.6 years: 42.9 years for males, and 40.6 years for females.