Spring Lake
Spring Lake in Sawyer County, Wisconsin has a water quality grade of C (Fair). Water clarity: 8.9 ft visibility. Phosphorus: 27 µg/L. Chlorophyll-a (algae): 5.2 µg/L. Maximum depth: 18 ft. Surface area: 202 acres.
- Clarity
- 8.9 ft
- Max depth
- 18 ft
- Area
- 202 acres
- Type
- Mesotrophic
- Trend
- ↑ Improving
- Public access
- Yes
Next lake in Sawyer County
Spring Lake is a 202-acre mesotrophic lake in Sawyer County, Wisconsin with a maximum depth of 18 feet. Water quality is graded C based on 2 sampling years through 2024. 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. Compared to the 44 other monitored lakes in Sawyer County, Spring Lake ranks #35 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-08-31. Grade methodology: LakeGrade methodology.
Watch Spring Lake water quality
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Swimming Safety
Grade onlyModerate
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.
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
Moderate clarity, visible to about 8.9 ft. Phosphorus level: 27 µg/L. Chlorophyll-a: 5.2 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.9 ft | Not graded |
| Phosphorus | 27 µg/L | Fair |
| Chlorophyll-a (Algae) | 5.2 µg/L | Good |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Spring Lake
Compare lakeside cabins, hotels, and vacation rentals near Spring Lake 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.
Top-rated places to stay near Spring Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 18 ft |
| Surface Area | 202 acres |
| Public Access | Yes |
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 Spring Lake
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2008).
Fish Species (DNR-rated)
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Spring Lake covering fish populations, stocking, water quality, and management. 5 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2025Moose Lake spring survey, 2025Fisheries Survey · WI DNR · 2025 (PDF)
- 2025Sissabagama Lake spring survey, 2025Fisheries Survey · WI DNR · 2025 (PDF)
- 2025Windfall Lake spring survey, 2025Fisheries Survey · WI DNR · 2025 (PDF)
- 2023Lost Land Lake spring shocking and netting survey, 2023Spring Shocking Survey · WI DNR · 2023 (PDF)
- 2023Teal Lake spring netting and shocking survey, 2023Netting Survey · WI DNR · 2023 (PDF)
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +1.17 m/yr | 5 |
| Phosphorus | → Stable | +0.2 µg/L/yr | 5 |
| Chlorophyll-a | ↑ Improving | -0.4 µg/L/yr | 5 |
County Ranking
Ranked #35 of 45 lakes in Sawyer County
Nearby Lakes With Higher Grades
Spring Lake holds Grade C. 3 nearby lakes hold higher nutrient-and-algae grades — useful for a swim day, not a reason to skip lodging here.
See full comparison →Nearby Lakes in Sawyer County
Frequently asked questions about Spring Lake
What is the water quality grade for Spring Lake?
- Spring Lake in Sawyer County, Wisconsin has a water quality grade of C (Fair). Water clarity: 8.9 ft visibility. Phosphorus: 27 µg/L. Chlorophyll-a (algae): 5.2 µg/L. Maximum depth: 18 ft. Surface area: 202 acres.
Is Spring Lake safe to swim in?
- Generally safe for swimming, moderate water quality. Spring Lake has a water quality grade of C (Fair). Algae concentration (chlorophyll-a) is 5.2 µg/L. Always check local health department advisories before swimming.
How deep is Spring Lake?
- Spring Lake has a maximum depth of 18 feet. The lake covers 202 acres.
What fish are in Spring Lake?
- Fish species found in Spring Lake include Panfish, Largemouth Bass, Northern Pike, Walleye. Spring Lake is located in Sawyer County, Wisconsin.
Explore Spring Lake across LakeGrade
Depth, room, public access, and the state wake-sport rules
Fish species and top-graded lakes across Wisconsin
Fish species and best lakes in Sawyer County
Species activity outlook by water temperature and season
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Where to stay at Wisconsin's top lakes, each with its grade
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Moderate nutrients, good water quality
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More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
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Where this data comes from
73 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Lac Courte Oreilles (Tribal)
LCOWIS_WQX73 samples · 2020–2024
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 4500 P F ~ Phosphorus in Water by Colorimetry Automated Ascorbic Acid Method
- 2320 B ~ Alkalinity by Gran Titration
- 4500 P E ~ Phosphorus by Ascorbic Acid
- 10200 H ~ Chlorophyll a-b-c Determination
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