Long Beach
- County:
- Douglas County
- County Seat:
- No
- Area (mi²):
- 1.426
- State:
- Minnesota
Long Beach is a city located in Douglas County, Minnesota. Long Beach has a 2026 population of 339. Long Beach is currently growing at a rate of 0.3% annually but its population has decreased by -0.88% since the most recent census, which recorded a population of 342 in 2020.