Wisconsin DNR fisheries surveys
Half Moon Lake FishingBWater-quality grade B
Wisconsin DNR rates Largemouth Bass as abundant on Half Moon Lake. In Polk County, Wisconsin, Half Moon Lake carries an overall water-quality grade of B. Water clarity averages 15.3 feet of visibility, and the lake has public access. The survey figures on this page are Wisconsin DNR's own; the water-quality grade comes from EPA Water Quality Portal samples. Neither is a forecast of today's bite.
Species recorded at Half Moon Lake
4 species on the Wisconsin DNR list for this lake. A species on the list has been recorded here; it does not mean it is catchable today or in every part of the lake.
How abundant each species is
Wisconsin DNR rates abundance from its own survey record rather than publishing a catch rate per species. The ratings below are theirs.
| Species | Abundance |
|---|---|
| Largemouth Bass | Abundant |
| Panfish | Common |
| Northern Pike | Common |
| Walleye | Present |
Stocking at Half Moon Lake
No stocking record for Half Moon Lake appears in the Wisconsin DNR material on file. That is an absence in the published record, not a confirmation that the lake is unstocked — some waters are managed as naturally reproducing and never appear in a stocking list at all.
Survey results in full
Wisconsin DNR rates Largemouth Bass as abundant on Half Moon Lake.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Half Moon Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 6 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. Monitored by volunteers since 1993. 13 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
Common questions
What fish are in Half Moon Lake?
Wisconsin DNR rates Largemouth Bass as abundant on Half Moon Lake. Wisconsin DNR lists 4 species for the lake in total. Those are survey results, not a catch report: a net set on one date measures what was in that net.
When was Half Moon Lake last surveyed?
No survey date is recorded for Half Moon Lake beyond the results themselves. Wisconsin DNR publishes the underlying documents, which carry the sampling dates.
Is Half Moon Lake stocked?
No stocking record for Half Moon Lake appears in the Wisconsin DNR material on file. That is not the same as a confirmed unstocked lake: it means no stocking document was published for it in the records this page draws on.
Does the water-quality grade tell me how Half Moon Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Half Moon Lake B from EPA Water Quality Portal chemistry, and the water-quality trend over 6 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Before you eat what you catch
A water-quality grade is not a consumption advisory. Mercury and PCB advice for Wisconsin waters comes from WI DNR/DHS, and it is issued per species and per size class — a lake can grade well and still carry a meal limit on larger predator fish.
Where to stay near Half Moon Lake
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