Lake of the Pines
Lake of the Pines in Sawyer County, Wisconsin has a water quality grade of B (Good). Water clarity: 8 ft visibility. Phosphorus: 16.6 µg/L.
- Clarity
- 8 ft
- Typical in August
- 75°F
- Mean depth
- ~14 ft est.
- Type
- Mesotrophic
- Trend
- ↓ Declining
- Public access
- Yes
Next lake in Sawyer County
Lake of the Pines is a mesotrophic lake in Sawyer County, Wisconsin with an estimated average depth of about 14 feet. Water quality is graded B based on 1 sampling years through 2026. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 44 other monitored lakes in Sawyer County, Lake of the Pines ranks #22 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-13. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLow algae
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: 16.6 µg/L. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 ft | Not graded |
| Phosphorus | 16.6 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lake of the Pines
Compare lakeside cabins, hotels, and vacation rentals near Lake of the Pines in Sawyer 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
Lake of the Pines typically sits around 75°F at the surface in August. Summer average is about 75°F. Usually warmest in Jul (about 78°F) and coldest in Jun (about 72°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 10 field readings (2024–2025) via the EPA Water Quality Portal. See the full Lake of the Pines water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~14 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Wisconsin has not published bathymetry for Lake of the Pines.
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
- Lake of the PinesPublic
Fishing Lake of the Pines
Water Quality Trend: ↓ Declining
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.443 m/yr | 6 |
| Phosphorus | → Stable | -0.2 µg/L/yr | 6 |
County Ranking
Ranked #22 of 45 lakes in Sawyer County
Nearby Lakes in Sawyer County
Frequently asked questions about Lake of the Pines
What is the water quality grade for Lake of the Pines?
- Lake of the Pines in Sawyer County, Wisconsin has a water quality grade of B (Good). Water clarity: 8 ft visibility. Phosphorus: 16.6 µg/L.
Is Lake of the Pines safe to swim in?
- Good for swimming, clear water with low algae levels. Lake of the Pines has a water quality grade of B (Good). Always check local health department advisories before swimming.
What is the water temperature of Lake of the Pines?
- Lake of the Pines typically sits around 75°F at the surface in August, from 10 EPA Water Quality Portal field readings (2024–2025). That is a typical value for the month, not a live reading.
How deep is Lake of the Pines?
- No published bathymetric survey covers Lake of the Pines, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 14 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 Lake of the Pines?
- Lake of the Pines has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake of the Pines. Public access is listed as yes.
Explore Lake of the Pines across LakeGrade
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Where this data comes from
49 measurements from 2 monitoring stations, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX49 samples · 2020–2026
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (2)
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