Boy River
- County:
- Cass County
- County Seat:
- No
- Area (mi²):
- 0.373
- State:
- Minnesota
Boy River is a city located in Cass County, Minnesota. Boy River has a 2026 population of 24. Boy River is currently declining at a rate of 0% annually and its population has increased by 4.35% since the most recent census, which recorded a population of 23 in 2020.
The median age in Boy River is 76.5 years: 0 years for males, and 0 years for females. For every 100 females there are 50.0 males.