Devils Lake
Devils Lake in Burnett County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 11 ft visibility.
- Clarity
- 11 ft
- Mean depth
- ~23 ft est.
- Trend
- ↑ Improving
- Public access
- Yes
Next lake in Burnett County
Why Devils Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: 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 Devils Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. 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.
Devils Lake is a lake in Burnett County, Wisconsin with an estimated average depth of about 23 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 4 public boat landings.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-07-03. Grade methodology: LakeGrade methodology.
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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 Devils Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Good clarity, visible to about 11 ft. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Devils Lake
Compare lakeside cabins, hotels, and vacation rentals near Devils Lake in Burnett 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 Devils Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~23 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Wisconsin has not published bathymetry for Devils Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Jeffries RoadPublic
- Devils Lake BeachPublic
- Conners LakePublic
- Highway 35 BridgePublic
Fishing Devils Lake
Water Quality Trend: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +1.575 m/yr | 4 |
Graded lakes near Devils Lake
Devils Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Burnett County
Frequently asked questions about Devils Lake
What is the water quality grade for Devils Lake?
- Devils Lake in Burnett County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 11 ft visibility.
Is Devils Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Devils Lake 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 Devils Lake?
- No published bathymetric survey covers Devils Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 23 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Devils Lake?
- Devils Lake has 4 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Jeffries Road, Devils Lake Beach, Conners Lake, Highway 35 Bridge. Public access is listed as yes.
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Where this data comes from
22 measurements from 1 monitoring station, 2023–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX22 samples · 2023–2026
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)
Named boat-access points from the USGS National Boat Ramps inventory