Little St Germain Lake-South Bay-Nr St Germain
Vilas County, Wisconsin972 acresView mapDirections
No nutrient or algae sampling on record from Wisconsin DNR for this lake.
- Impaired · Nutrients (phosphorus, nitrogen)
- Curly-Leaf Pondweed
- 53 ft max depth
- Public access
- Limited data
Ask about Little St Germain Lake-South Bay-Nr St Germain
Answers come straight from the public measurements and survey records on this page.
Little St Germain Lake-South Bay-Nr St Germain in Vilas County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 53 ft. Surface area: 972 acres.
Stays via Stay22
Stays near Little St Germain Lake-South Bay-Nr St Germain
Compare lakeside cabins, hotels, and vacation rentals near Little St Germain Lake-South Bay-Nr St Germain in Vilas County, Wisconsin — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Little St Germain Lake-South Bay-Nr St Germain
Prices for Sep 18–20, 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 whole trip? See where to stay at Wisconsin’s top lakes →
Follow Little St Germain Lake-South Bay-Nr St Germain’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Little St Germain Lake-South Bay-Nr St Germain is a 972-acre lake in Vilas County, Wisconsin with a maximum depth of 53 feet. Overall water quality is declining over recent sampling years. The lake supports 6 documented fish species including Musky, Panfish, and Largemouth Bass. Public access is available.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2020-01-14. Grade methodology: LakeQuality methodology.
What Little St Germain Lake-South Bay-Nr St Germain is good for
From access and monitoring records, not editorial picks.
- Fishing6 species recorded
- Deep water53 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Little St Germain Lake-South Bay-Nr St Germain is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Little St Germain Lake-South Bay-Nr St Germain is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Compare swimming lakes near Eagle River →
Get alerts for Little St Germain Lake-South Bay-Nr St Germain →
Water quality measurements for Little St Germain Lake-South Bay-Nr St Germain
These are the measurements Wisconsin DNR publishes for Little St Germain Lake-South Bay-Nr St Germain, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 53 ft |
| Surface Area | 972 acres |
| Public Access | Yes |
Fish Species
Click a species to see every lake where it is documented.
Fishing Little St Germain Lake-South Bay-Nr St Germain
- → Little St Germain Lake-South Bay-Nr St Germain fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Little St Germain Lake-South Bay-Nr St Germain fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Little St Germain Lake-South Bay-Nr St Germain? (mercury & PFAS guide)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: ↓ Declining
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.357 m/yr | 6 |
| Phosphorus | → Stable | -0.01 µg/L/yr | 7 |
EPA Impairment Status
Little St Germain Lake-South Bay-Nr St Germain is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit WI8128746 · Official waterbody report · Matched by proximity (1.85 km)
Nearby Lakes in Vilas County
Frequently asked questions about Little St Germain Lake-South Bay-Nr St Germain
Where is Little St Germain Lake-South Bay-Nr St Germain?
- Little St Germain Lake-South Bay-Nr St Germain is a lake in Vilas County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Little St Germain Lake-South Bay-Nr St Germain?
- Little St Germain Lake-South Bay-Nr St Germain in Vilas County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Maximum depth: 53 ft. Surface area: 972 acres.
Is Little St Germain Lake-South Bay-Nr St Germain safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Little St Germain Lake-South Bay-Nr St Germain is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Little St Germain Lake-South Bay-Nr St Germain?
- Little St Germain Lake-South Bay-Nr St Germain has a maximum depth of 53 feet. The lake covers 972 acres.
What fish are in Little St Germain Lake-South Bay-Nr St Germain?
- Fish species found in Little St Germain Lake-South Bay-Nr St Germain include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye. Little St Germain Lake-South Bay-Nr St Germain is located in Vilas County, Wisconsin.
Explore Little St Germain Lake-South Bay-Nr St Germain across LakeQuality
Fish species and the cleanest lakes across Wisconsin
Fish species and best lakes in Vilas County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Northwoods Wisconsin area
Where to stay at Wisconsin's top lakes, each with its readings
Lakes in the Wisconsin River Watershed, ranked by water quality
Wisconsin's cleanest lakes, ranked on agency measurements
More lakes in Wisconsin
Other Lakes in Wisconsin
Where this data comes from
2 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Wisconsin Water Science Center
USGS-WI2 samples · 2020
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Fish and recreation data from Wisconsin DNR Lakes