Killarney Lake
Killarney Lake in Oneida County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.7 ft visibility. Maximum depth: 8 ft. Surface area: 293 acres.
Wisconsin DNR lists Panfish as present on Killarney Lake. DNR survey details →
- Clarity
- 1.7 ft
- Max depth
- 8 ft
- Area
- 293 acres
- Trend
- ↑ Improving
- Public access
- Yes
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Why Killarney 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 Killarney 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.
Killarney Lake is a 293-acre lake in Oneida County, Wisconsin with a maximum depth of 8 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 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-07-03. 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 Killarney Lake
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 1.7 ft of visibility. Trophic State Index: 69.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.7 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 69 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Killarney Lake
Compare lakeside cabins, hotels, and vacation rentals near Killarney 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 Killarney Lake
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Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Wisconsin DNR lists Panfish as present on Killarney 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 Killarney Lake — official chemistry is on file, not a letter, and the water-quality trend over 2 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 Killarney 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).
- 2025Killarney 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
- Killarney Lake - SouthPublic
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 Killarney Lake
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.5 m/yr | 2 |
Reservoir Info (USACE NID)
Killarney Lake is a man-made reservoir impounded by the Little Rice River (completed 1961), built primarily for recreation on the LITTLE RICE; gravity-type dam, 15 ft tall and 400 ft long.
- Surface area
- 421 ac
- Normal storage
- 1,120 ac-ft
- Max storage
- 2,000 ac-ft
- Drainage area
- 32 sq mi
- Hazard class
- Low
- Owner
- Town of Little Rice
Source: USACE National Inventory of Dams, NID ID WI00165 · Operator website
Graded lakes near Killarney Lake
Killarney Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Oneida County
Frequently asked questions about Killarney Lake
Where is Killarney Lake?
- Killarney 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 Killarney Lake?
- Killarney Lake in Oneida County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.7 ft visibility. Maximum depth: 8 ft. Surface area: 293 acres.
Is Killarney Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Killarney 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 Killarney Lake?
- Killarney Lake has a maximum depth of 8 feet. The lake covers 293 acres.
What fish are in Killarney Lake?
- Fish species found in Killarney Lake include Panfish, Largemouth Bass, Northern Pike. Killarney Lake is located in Oneida County, Wisconsin.
What did the DNR fisheries survey find at Killarney Lake?
- Wisconsin DNR lists Panfish as present on Killarney 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 Killarney Lake — official chemistry is on file, not a letter, and the water-quality trend over 2 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Killarney Lake?
- Killarney Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Killarney Lake - South. Public access is listed as yes.
Explore Killarney Lake across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2024–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX2 samples · 2024–2025
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