Gull Lake
Gull Lake in Burnett County, Wisconsin has a water quality grade of B (Good). Water clarity: 8 ft visibility. Phosphorus: 21.4 µg/L. Maximum depth: 19 ft. Surface area: 178 acres.
- Clarity
- 8 ft
- Typical in August
- 72°F
- Max depth
- 19 ft
- Area
- 178 acres
- Type
- Mesotrophic
- Trend
- ↑ Improving
- Public access
- Yes
Next lake in Burnett County
Gull Lake is a 178-acre mesotrophic lake in Burnett County, Wisconsin with a maximum depth of 19 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 4 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing. Compared to the 29 other monitored lakes in Burnett County, Gull Lake ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-10-04. Grade methodology: LakeGrade 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)
Moderate clarity, visible to about 8 ft. Phosphorus level: 21.4 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 ft | Not graded |
| Phosphorus | 21.4 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Gull Lake
Compare lakeside cabins, hotels, and vacation rentals near Gull 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.
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Water Temperature
Gull Lake typically sits around 72°F at the surface in August. Summer average is about 72°F. Usually warmest in Jun (about 74°F) and coldest in Oct (about 62°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 14 field readings (2025–2025) via the EPA Water Quality Portal. See the full Gull Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 19 ft |
| Surface Area | 178 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Gull LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Gull 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.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1992. 1 station on file (most recent sample 2025).
Fish Species (DNR-rated)
Water Quality Trend: ↑ Improving
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.15 m/yr | 6 |
| Phosphorus | ↑ Improving | -0.32 µg/L/yr | 7 |
County Ranking
Ranked #17 of 30 lakes in Burnett County
Nearby Lakes in Burnett County
Frequently asked questions about Gull Lake
What is the water quality grade for Gull Lake?
- Gull Lake in Burnett County, Wisconsin has a water quality grade of B (Good). Water clarity: 8 ft visibility. Phosphorus: 21.4 µg/L. Maximum depth: 19 ft. Surface area: 178 acres.
Is Gull Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Gull Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
What is the water temperature of Gull Lake?
- Gull Lake typically sits around 72°F at the surface in August, from 14 EPA Water Quality Portal field readings (2025–2025). That is a typical value for the month, not a live reading.
How deep is Gull Lake?
- Gull Lake has a maximum depth of 19 feet. The lake covers 178 acres.
What fish are in Gull Lake?
- Fish species found in Gull Lake include Panfish, Largemouth Bass, Northern Pike, Walleye. Gull Lake is located in Burnett County, Wisconsin.
Are there boat ramps on Gull Lake?
- Gull Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Gull Lake. Public access is listed as yes.
Explore Gull Lake across LakeGrade
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Where this data comes from
29 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_WQX29 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
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