Irogami Lake
Irogami Lake in Waushara County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4 ft visibility. Maximum depth: 5 ft. Surface area: 290 acres.
Wisconsin DNR rates Panfish and Largemouth Bass as abundant on Irogami Lake. DNR survey details →
- Clarity
- 4 ft
- Max depth
- 5 ft
- Area
- 290 acres
- Trend
- ↑ Improving
- Public access
- Yes
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Why Irogami 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 Irogami 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.
Irogami Lake is a 290-acre lake in Waushara County, Wisconsin with a maximum depth of 5 feet. Overall water quality 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 3 public boat landings.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-03-25. 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 Irogami Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 4 ft. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Irogami Lake
Compare lakeside cabins, hotels, and vacation rentals near Irogami Lake in Waushara 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 Irogami Lake
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Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Wisconsin DNR rates Panfish and Largemouth Bass as abundant on Irogami 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 Irogami Lake — official chemistry is on file, not a letter, and the water-quality trend over 7 years of monitoring is improving. 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 2025).
Fish Species (DNR-rated)
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Irogami 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).
- 2021Irogami Lake spring shocking survey, 2021Spring Shocking Survey · WI DNR · 2021 (PDF)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 5 ft |
| Surface Area | 290 acres |
| Public Access | Yes |
Recreation & Access
- Highway 21Public
- Irogami TrailPublic
- Chicago AvenuePublic
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 Irogami 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.
Water Quality Trend: ↑ Improving
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.179 m/yr | 7 |
| Phosphorus | ↑ Improving | -0.79 µg/L/yr | 7 |
Graded lakes near Irogami Lake
Irogami Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Waushara County
Frequently asked questions about Irogami Lake
Where is Irogami Lake?
- Irogami Lake is a lake in Waushara 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 Irogami Lake?
- Irogami Lake in Waushara County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4 ft visibility. Maximum depth: 5 ft. Surface area: 290 acres.
Is Irogami Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Irogami 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 Irogami Lake?
- Irogami Lake has a maximum depth of 5 feet. The lake covers 290 acres.
What fish are in Irogami Lake?
- Fish species found in Irogami Lake include Panfish, Largemouth Bass, Northern Pike. Irogami Lake is located in Waushara County, Wisconsin.
What did the DNR fisheries survey find at Irogami Lake?
- Wisconsin DNR rates Panfish and Largemouth Bass as abundant on Irogami 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 Irogami Lake — official chemistry is on file, not a letter, and the water-quality trend over 7 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Irogami Lake?
- Irogami Lake has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Highway 21, Irogami Trail, Chicago Avenue. Public access is listed as yes.
Explore Irogami Lake across LakeQuality
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Where this data comes from
3 measurements from 1 monitoring station, 2022–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX3 samples · 2022–2025
Analytical methods
- Total Phosphorus After Block Digestion
- 2130 B ~ Nephelometric Method
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