Lake Sharon
Lake Sharon in Marquette County, Wisconsin has a water quality grade of B (Good). Water clarity: 9 ft visibility. Phosphorus: 13 µg/L. Maximum depth: 30 ft. Surface area: 47 acres.
- Clarity
- 9 ft
- Max depth
- 30 ft
- Area
- 47 acres
- Type
- Mesotrophic
- Trend
- → Stable
- Public access
- Yes
Next lake in Marquette County
Lake Sharon is a 47-acre mesotrophic lake in Marquette County, Wisconsin with a maximum depth of 30 feet. Water quality is graded B based on 1 sampling years through 2026. Water clarity is improving 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. Compared to the 10 other monitored lakes in Marquette County, Lake Sharon ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-21. 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 9 ft. Phosphorus level: 13 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9 ft | Not graded |
| Phosphorus | 13 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lake Sharon
Compare lakeside cabins, hotels, and vacation rentals near Lake Sharon in Marquette 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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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 30 ft |
| Surface Area | 47 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Lake SharonPublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Lake Sharon
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 2003. 1 station on file (most recent sample 2025).
Fish Species (DNR-rated)
Water Quality Trend: → Stable
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.814 m/yr | 6 |
| Phosphorus | ↓ Declining | +0.29 µg/L/yr | 7 |
County Ranking
Ranked #2 of 11 lakes in Marquette County
Nearby Lakes in Marquette County
Frequently asked questions about Lake Sharon
What is the water quality grade for Lake Sharon?
- Lake Sharon in Marquette County, Wisconsin has a water quality grade of B (Good). Water clarity: 9 ft visibility. Phosphorus: 13 µg/L. Maximum depth: 30 ft. Surface area: 47 acres.
Is Lake Sharon safe to swim in?
- Good for swimming, clear water with low algae levels. Lake Sharon has a water quality grade of B (Good). Always check local health department advisories before swimming.
How deep is Lake Sharon?
- Lake Sharon has a maximum depth of 30 feet. The lake covers 47 acres.
What fish are in Lake Sharon?
- Fish species found in Lake Sharon include Panfish, Largemouth Bass, Northern Pike. Lake Sharon is located in Marquette County, Wisconsin.
Are there boat ramps on Lake Sharon?
- Lake Sharon has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Sharon. Public access is listed as yes.
Explore Lake Sharon across LakeGrade
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Fish species and best lakes in Marquette County
Species activity outlook by water temperature and season
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Moderate nutrients, good water quality
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State Parks Near Lake Sharon
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Where this data comes from
30 measurements from 1 monitoring station, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX30 samples · 2020–2026
Analytical methods
- Total Phosphorus After Block Digestion
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