Swamp Lake
Swamp Lake in Oneida County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.5 ft visibility. Maximum depth: 8 ft. Surface area: 293 acres.
Wisconsin DNR rates Northern Pike as abundant on Swamp Lake. DNR survey details →
- Clarity
- 3.5 ft
- Max depth
- 8 ft
- Area
- 293 acres
- Public access
- Yes
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Why Swamp Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Swamp Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Swamp Lake is a 293-acre lake in Oneida County, Wisconsin with a maximum depth of 8 feet. The lake supports 4 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2021-05-01. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Swamp Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 3.5 ft. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Swamp Lake
Compare lakeside cabins, hotels, and vacation rentals near Swamp Lake in Oneida 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 Swamp Lake
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Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Wisconsin DNR rates Northern Pike as abundant on Swamp Lake.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Swamp Lake — official chemistry is on file, not a letter. 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 2021).
Fish Species (DNR-rated)
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Swamp Lake covering fish populations, stocking, water quality, and management. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2025Swamp Lake spring shocking survey, 2025Spring Shocking Survey · WI DNR · 2025 (PDF)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 8 ft |
| Surface Area | 293 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Swamp LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Swamp Lake
Graded lakes near Swamp Lake
Swamp Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Oneida County
Frequently asked questions about Swamp Lake
Where is Swamp Lake?
- Swamp Lake is a lake in Oneida County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Swamp Lake?
- Swamp Lake in Oneida County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.5 ft visibility. Maximum depth: 8 ft. Surface area: 293 acres.
Is Swamp Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Swamp Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
How deep is Swamp Lake?
- Swamp Lake has a maximum depth of 8 feet. The lake covers 293 acres.
What fish are in Swamp Lake?
- Fish species found in Swamp Lake include Panfish, Largemouth Bass, Northern Pike, Walleye. Swamp Lake is located in Oneida County, Wisconsin.
What did the DNR fisheries survey find at Swamp Lake?
- Wisconsin DNR rates Northern Pike as abundant on Swamp Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Swamp Lake — official chemistry is on file, not a letter. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Swamp Lake?
- Swamp Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Swamp Lake. Public access is listed as yes.
Explore Swamp Lake across LakeQuality
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Where this data comes from
4 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX4 samples · 2020–2021
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