Virgin Lake
Virgin Lake in Oneida County, Wisconsin has a water quality grade of B (Good). Water clarity: 6.6 ft visibility. Phosphorus: 18.1 µg/L. Maximum depth: 31 ft. Surface area: 261 acres.
Wisconsin DNR lists Musky as common on Virgin Lake. DNR survey details →
- Clarity
- 6.6 ft
- Max depth
- 31 ft
- Area
- 261 acres
- Type
- Mesotrophic
- Trend
- ↑ Improving
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Virgin Lake is a 261-acre mesotrophic lake in Oneida County, Wisconsin with a maximum depth of 31 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 6 documented fish species including Musky, Panfish, and Largemouth Bass. Compared to the 66 other monitored lakes in Oneida County, Virgin Lake ranks #32 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-08-31. Grade methodology: LakeQuality methodology.
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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)
Murky, only visible to about 6.6 ft. Phosphorus level: 18.1 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.6 ft | Not graded |
| Phosphorus | 18.1 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Virgin Lake
Compare lakeside cabins, hotels, and vacation rentals near Virgin 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 Virgin Lake
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Wisconsin DNR lists Musky as common on Virgin Lake.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Virgin Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 7 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 1994. 3 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 31 ft |
| Surface Area | 261 acres |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Virgin Lake
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: ↑ Improving
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.529 m/yr | 6 |
| Phosphorus | ↑ Improving | -1.61 µg/L/yr | 7 |
EPA Impairment Status
Virgin Lake 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 WI10007510 · Official waterbody report
County Ranking
Ranked #32 of 67 lakes in Oneida County
Nearby Lakes in Oneida County
Frequently asked questions about Virgin Lake
Where is Virgin Lake?
- Virgin 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 Virgin Lake?
- Virgin Lake in Oneida County, Wisconsin has a water quality grade of B (Good). Water clarity: 6.6 ft visibility. Phosphorus: 18.1 µg/L. Maximum depth: 31 ft. Surface area: 261 acres.
Is Virgin Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Virgin Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
How deep is Virgin Lake?
- Virgin Lake has a maximum depth of 31 feet. The lake covers 261 acres.
What fish are in Virgin Lake?
- Fish species found in Virgin Lake include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye. Virgin Lake is located in Oneida County, Wisconsin.
What did the DNR fisheries survey find at Virgin Lake?
- Wisconsin DNR lists Musky as common on Virgin Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Virgin Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 7 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Explore Virgin Lake across LakeQuality
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Moderate nutrients, good water quality
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Where this data comes from
48 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX48 samples · 2020–2025
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes