
Washington Lake township
- County:
- Sibley County
- County Seat:
- No
- Area (mi²):
- 34.289
- State:
- Minnesota
Washington Lake township is located in Sibley County, Minnesota. Washington Lake township has a 2025 population of 464. Washington Lake township is currently growing at a rate of 0.87% annually and its population has increased by 2.88% since the most recent census, which recorded a population of 451 in 2020.
The average household income in Washington Lake township is $104,786 with a poverty rate of 5%. The median age in Washington Lake township is 54.8 years: 58 years for males, and 51 years for females.