
Algona
- County:
- King County
- County Seat:
- No
- Area (mi²):
- 1.292
- State:
- Washington
Algona is a city located in King County, Washington. Algona has a 2025 population of 3,128. Algona is currently declining at a rate of -0.98% annually and its population has decreased by -4.78% since the most recent census, which recorded a population of 3,285 in 2020.
The average household income in Algona is $95,236 with a poverty rate of 11.49%. The median age in Algona is 32.5 years: 32.7 years for males, and 31.8 years for females.