Oscar Jenny Lake
Oscar Jenny Lake in Oneida County, Wisconsin has a water quality grade of B (Good). Water clarity: 8.9 ft visibility. Phosphorus: 12.6 µg/L. Maximum depth: 24 ft. Surface area: 101 acres.
Wisconsin DNR lists Panfish as common on Oscar Jenny Lake. DNR survey details →
- Clarity
- 8.9 ft
- Max depth
- 24 ft
- Area
- 101 acres
- Type
- Mesotrophic
- Trend
- ↑ Improving
- Public access
- Yes
Next lake in Oneida County
Swipe left or right on this bar to open the next or previous lake.
Oscar Jenny Lake is a 101-acre mesotrophic lake in Oneida County, Wisconsin with a maximum depth of 24 feet. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is improving over recent sampling years. The lake supports 3 documented fish species including Musky, Panfish, and Largemouth Bass. Public access is available with 1 public boat landing. Compared to the 66 other monitored lakes in Oneida County, Oscar Jenny Lake ranks #47 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-08-27. Grade methodology: LakeQuality methodology.
Watch Oscar Jenny Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Moderate clarity, visible to about 8.9 ft. Phosphorus level: 12.6 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.9 ft | Not graded |
| Phosphorus | 12.6 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Oscar Jenny Lake
Compare lakeside cabins, hotels, and vacation rentals near Oscar Jenny Lake in Oneida 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 Oscar Jenny Lake
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 →
Wisconsin DNR lists Panfish as common on Oscar Jenny Lake.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Oscar Jenny Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 3 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2024. 1 station on file (most recent sample 2025).
Fish Species (DNR-rated)
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Oscar Jenny Lake covering fish populations, stocking, water quality, and management. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2024Oscar-Jenny Lake spring shocking, 2024Spring Shocking Survey · WI DNR · 2024 (PDF)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 24 ft |
| Surface Area | 101 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Oscar-Jenny LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Oscar Jenny Lake
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.609 m/yr | 3 |
| Phosphorus | ↑ Improving | -3.87 µg/L/yr | 2 |
County Ranking
Ranked #47 of 67 lakes in Oneida County
Nearby Lakes in Oneida County
Frequently asked questions about Oscar Jenny Lake
Where is Oscar Jenny Lake?
- Oscar Jenny Lake is a lake in Oneida County, Wisconsin. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Oscar Jenny Lake?
- Oscar Jenny Lake in Oneida County, Wisconsin has a water quality grade of B (Good). Water clarity: 8.9 ft visibility. Phosphorus: 12.6 µg/L. Maximum depth: 24 ft. Surface area: 101 acres.
Is Oscar Jenny Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Oscar Jenny Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
How deep is Oscar Jenny Lake?
- Oscar Jenny Lake has a maximum depth of 24 feet. The lake covers 101 acres.
What fish are in Oscar Jenny Lake?
- Fish species found in Oscar Jenny Lake include Musky, Panfish, Largemouth Bass. Oscar Jenny Lake is located in Oneida County, Wisconsin.
What did the DNR fisheries survey find at Oscar Jenny Lake?
- Wisconsin DNR lists Panfish as common on Oscar Jenny Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Oscar Jenny Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 3 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Oscar Jenny Lake?
- Oscar Jenny Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Oscar-Jenny Lake. Public access is listed as yes.
Explore Oscar Jenny Lake across LakeQuality
Fish species and top-graded lakes across Wisconsin
Fish species and best lakes in Oneida County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Northwoods Wisconsin area
Top lakes and where to stay in the Minocqua Chain area
Where to stay at Wisconsin's top lakes, each with its grade
Lakes in the Wisconsin River Watershed, ranked by water quality
Moderate nutrients, good water quality
Wisconsin's cleanest and most-polluted lakes, ranked
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Where this data comes from
11 measurements from 1 monitoring station, 2022–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX11 samples · 2022–2025
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory