Lake Wandawega
Lake Wandawega in Walworth County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6 ft visibility. Maximum depth: 8 ft. Surface area: 120 acres.
Wisconsin DNR rates Panfish as abundant on Lake Wandawega. DNR survey details →
- Clarity
- 6 ft
- Max depth
- 8 ft
- Area
- 120 acres
- Trend
- ↓ Declining
- Public access
- Yes
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Why Lake Wandawega has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lake Wandawega, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Wandawega is a 120-acre lake in Walworth County, Wisconsin with a maximum depth of 8 feet. Overall water quality is declining over recent sampling years. The lake supports 3 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2021-08-19. Grade methodology: LakeQuality methodology.
Watch Lake Wandawega water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Wandawega
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 6 ft. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Wandawega
Compare lakeside cabins, hotels, and vacation rentals near Lake Wandawega in Walworth 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 Lake Wandawega
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Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Wisconsin DNR rates Panfish as abundant on Lake Wandawega.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Lake Wandawega — official chemistry is on file, not a letter, and the water-quality trend over 2 years of monitoring is declining. 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. 2 stations on file (most recent sample 2021).
Fish Species (DNR-rated)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 8 ft |
| Surface Area | 120 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Wandawega 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 Lake Wandawega
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 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -1.5 m/yr | 2 |
Graded lakes near Lake Wandawega
Lake Wandawega has no grade, but these lakes within a short drive do.
Nearby Lakes in Walworth County
Frequently asked questions about Lake Wandawega
Where is Lake Wandawega?
- Lake Wandawega is a lake in Walworth County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Lake Wandawega?
- Lake Wandawega in Walworth County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6 ft visibility. Maximum depth: 8 ft. Surface area: 120 acres.
Is Lake Wandawega safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Wandawega is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
How deep is Lake Wandawega?
- Lake Wandawega has a maximum depth of 8 feet. The lake covers 120 acres.
What fish are in Lake Wandawega?
- Fish species found in Lake Wandawega include Panfish, Largemouth Bass, Northern Pike. Lake Wandawega is located in Walworth County, Wisconsin.
What did the DNR fisheries survey find at Lake Wandawega?
- Wisconsin DNR rates Panfish as abundant on Lake Wandawega. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Lake Wandawega — official chemistry is on file, not a letter, and the water-quality trend over 2 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Lake Wandawega?
- Lake Wandawega has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Wandawega Lake. Public access is listed as yes.
Explore Lake Wandawega across LakeQuality
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Where this data comes from
1 measurement from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX1 sample · 2021
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