King Lake
King Lake in Polk County, Wisconsin has a water quality grade of B (Good). Water clarity: 11.5 ft visibility. Phosphorus: 20.6 µg/L. Maximum depth: 14 ft. Surface area: 53 acres.
Wisconsin DNR lists Panfish as present on King Lake. DNR survey details →
- Clarity
- 11.5 ft
- Max depth
- 14 ft
- Area
- 53 acres
- Type
- Mesotrophic
- Trend
- ↓ Declining
- Public access
- Yes
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King Lake is a 53-acre mesotrophic lake in Polk County, Wisconsin with a maximum depth of 14 feet. Water quality is graded B based on 1 sampling years through 2023. Overall water quality is declining over recent sampling years. The lake supports 3 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available. Compared to the 54 other monitored lakes in Polk County, King Lake ranks #21 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2023-09-11. Grade methodology: LakeQuality 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 11.5 ft. Phosphorus level: 20.6 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.5 ft | Not graded |
| Phosphorus | 20.6 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near King Lake
Compare lakeside cabins, hotels, and vacation rentals near King Lake in Polk 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 King Lake
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Wisconsin DNR lists Panfish as present on King Lake.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades King Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 2 years of monitoring is declining. 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. 1 station on file (most recent sample 2023).
Fish Species (DNR-rated)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 14 ft |
| Surface Area | 53 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 King Lake
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -1 m/yr | 2 |
| Phosphorus | → Stable | +0.4 µg/L/yr | 2 |
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of King Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Amery City OfAmery · 1.7 mi away · NPDES WI0020125Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
County Ranking
Ranked #21 of 55 lakes in Polk County
Nearby Lakes in Polk County
Frequently asked questions about King Lake
Where is King Lake?
- King Lake is a lake in Polk County, Wisconsin. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for King Lake?
- King Lake in Polk County, Wisconsin has a water quality grade of B (Good). Water clarity: 11.5 ft visibility. Phosphorus: 20.6 µg/L. Maximum depth: 14 ft. Surface area: 53 acres.
Is King Lake safe to swim in?
- Good for swimming, clear water with low algae levels. King Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
How deep is King Lake?
- King Lake has a maximum depth of 14 feet. The lake covers 53 acres.
What fish are in King Lake?
- Fish species found in King Lake include Panfish, Largemouth Bass, Northern Pike. King Lake is located in Polk County, Wisconsin.
What did the DNR fisheries survey find at King Lake?
- Wisconsin DNR lists Panfish as present on King Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades King Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 2 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Explore King Lake across LakeQuality
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Species activity outlook by water temperature and season
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Moderate nutrients, good water quality
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State Parks Near King Lake
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Where this data comes from
12 measurements from 1 monitoring station, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX12 samples · 2022–2023
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes