Korth Lake
Korth Lake in Shawano County, Wisconsin has a water quality grade of B (Good). Water clarity: 12 ft visibility. Phosphorus: 13.5 µg/L. Maximum depth: 48 ft. Surface area: 22 acres.
- Clarity
- 12 ft
- Max depth
- 48 ft
- Area
- 22 acres
- Type
- Mesotrophic
- Public access
- Yes
Next lake in Shawano County
Korth Lake is a 22-acre mesotrophic lake in Shawano County, Wisconsin with a maximum depth of 48 feet. Water quality is graded B based on 1 sampling years through 2020. The lake supports 4 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 2 public boat landings. Compared to the 20 other monitored lakes in Shawano County, Korth Lake ranks #13 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2020-09-02. 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)
Good clarity, visible to about 12 ft. Phosphorus level: 13.5 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12 ft | Not graded |
| Phosphorus | 13.5 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Korth Lake
Compare lakeside cabins, hotels, and vacation rentals near Korth Lake in Shawano 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 | 48 ft |
| Surface Area | 22 acres |
| Public Access | Yes |
Recreation & Access
- Cecil Village ParkPublic
- Korth LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Korth 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. 1 station on file (most recent sample 2020).
Fish Species (DNR-rated)
EPA Impairment Status
Korth Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit WI10009456 · Official waterbody report
County Ranking
Ranked #13 of 21 lakes in Shawano County
Nearby Lakes in Shawano County
Frequently asked questions about Korth Lake
What is the water quality grade for Korth Lake?
- Korth Lake in Shawano County, Wisconsin has a water quality grade of B (Good). Water clarity: 12 ft visibility. Phosphorus: 13.5 µg/L. Maximum depth: 48 ft. Surface area: 22 acres.
Is Korth Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Korth Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
How deep is Korth Lake?
- Korth Lake has a maximum depth of 48 feet. The lake covers 22 acres.
What fish are in Korth Lake?
- Fish species found in Korth Lake include Panfish, Largemouth Bass, Northern Pike, Trout. Korth Lake is located in Shawano County, Wisconsin.
Are there boat ramps on Korth Lake?
- Korth Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Cecil Village Park, Korth Lake. Public access is listed as yes.
Explore Korth Lake across LakeGrade
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Where this data comes from
7 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX7 samples · 2020
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
Impairment status from EPA ATTAINS 303(d) database
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory