Is Greenwood Lake Safe for Swimming?
Greenwood Lake in Lake County, Minnesota has nutrient and algae measurements on record from state and federal monitoring. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Water clarity: 2.1 ft visibility. Phosphorus: 27.5 µg/L. Chlorophyll-a (algae): 5.9 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 2.1 ft |
| Phosphorus | 27.5 μg/L |
| Chlorophyll-a (Algae) | 5.9 μg/L |
| Maximum Depth | 7 ft |
| Location | Lake County, Minnesota |
How does Greenwood Lake compare?
On nutrient and algae readings, Greenwood Lake matches or beats the Minnesota state average. It ranks #30 of 35 lakes in Lake County on nutrient and algae readings.
Water clarity (Secchi depth) sits at 2.1 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff. Algae levels (chlorophyll-a) measure 5.9 µg/L — low and well within safe swimming guidelines.
Stays via Stay22
Where to stay near Greenwood Lake
Compare cabins, hotels, and vacation rentals near Greenwood Lake in Lake County, Minnesota. Live availability and prices for your nights. Switch the map to Satellite to see how close each stay is to the water.
Top-rated places to stay near Greenwood Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Greenwood Lake?
Get lake water-quality updates plus the best cabin & lodging deals near Greenwood Lake — straight to your inbox. No spam, unsubscribe anytime.
Watch Greenwood Lake water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.