Lake Sharon
Marquette County, Wisconsin47 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Lake Sharon. Here is what has been measured.
- Mesotrophic
- 30 ft max depth
- Public access
- Limited data
Lake Sharon in Marquette County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 9 ft visibility. Phosphorus: 13 µg/L. Maximum depth: 30 ft. Surface area: 47 acres.
Wisconsin DNR lists Panfish as common on Lake Sharon. DNR survey details →
Lake Sharon is a 47-acre mesotrophic lake in Marquette County, Wisconsin with a maximum depth of 30 feet. 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. Methodology: how these readings are compared.
What Lake Sharon is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Fishing3 species recorded
- Deep water30 ft surveyed max depth
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Sharon is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Sharon
These are the measurements Wisconsin DNR publishes for Lake Sharon, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 9 ft. Phosphorus 13 µg/L. TSI 43.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 13µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 43 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Lake Sharon
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR lists Panfish as common on Lake Sharon.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Lake Sharon’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
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)
Lake Details
Max depth
30 ft
Surface area
47 acres
Public access
Yes
Listed by Wisconsin DNR
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.4 mi
HydroLAKES / HydroSHEDS
Elevation
846 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Lake SharonPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays 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.
Top-rated places to stay near Lake Sharon
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Follow Lake Sharon’s readings
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Fish Species
Click a species to see every 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.
Water Quality Trend: Stable
Based on 7 years of monitoring (2020–2026).
Water clarity
Improving6 years
Phosphorus
Worsening+0.29 µg/L/yr7 years
Nearby Lakes in Marquette County
Frequently asked questions about Lake Sharon
Where is Lake Sharon?
- Lake Sharon is a lake in Marquette County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Lake Sharon?
- Lake Sharon in Marquette County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 9 ft visibility. Phosphorus: 13 µg/L. Maximum depth: 30 ft. Surface area: 47 acres.
Is Lake Sharon safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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.
What did the DNR fisheries survey find at Lake Sharon?
- Wisconsin DNR lists Panfish as common on Lake Sharon. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Lake Sharon’s water-quality measurements separately, and the water-quality trend over 7 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
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.
Can I fish at Lake Sharon?
- Lake Sharon has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.
Explore Lake Sharon across LakeQuality
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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)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from 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