Tomahawk Lake
Tomahawk Lake in Oneida County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 3578 acres.
- Area
- 3,578 acres
- Public access
- Yes
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Why Tomahawk 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 Tomahawk Lake, no water-quality sampling on record for this lake.
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.
Tomahawk Lake is a 3,578-acre lake in Oneida County, Wisconsin. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Tomahawk Lake water quality
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Tomahawk Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Tomahawk Lake
Compare lakeside cabins, hotels, and vacation rentals near Tomahawk 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 Tomahawk Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 3,578 acres |
| Public Access | Yes |
No bathymetric survey has been published for Tomahawk Lake, so its depth is not documented here.
Recreation & Access
- Tomahawk Lake - Tomahawk RoadPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Tomahawk Lake
Nearby Lakes in Oneida County
Frequently asked questions about Tomahawk Lake
Where is Tomahawk Lake?
- Tomahawk Lake is a lake in Oneida County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Tomahawk Lake?
- Tomahawk Lake in Oneida County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 3578 acres.
Is Tomahawk Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Tomahawk Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Tomahawk Lake?
- Tomahawk Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Tomahawk Lake - Tomahawk Road. Public access is listed as yes.
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Where this data comes from
Measurements for Tomahawk Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory