Skip to main content
LakeQuality

Lake Audubon vs Qacmainstfbk Lake

Water quality, depth, fish species, and recreation comparison.

Qacmainstfbk Lake has a higher water quality grade (A, Excellent) than Lake Audubon (B, Good). Both are in Wisconsin.

Both Lake Audubon and Qacmainstfbk Lake sit in North Dakota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. The grades are close: Lake Audubon (B) and Qacmainstfbk Lake (A) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.

With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.

B

Lake Audubon

McLean County, Wisconsin

Murky, only visible to about 4.7 ft.

A

Qacmainstfbk Lake

Mercer County, Wisconsin

No clarity data.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricLake AudubonQacmainstfbk Lake
Overall GradeB (Good)A (Excellent)
Water Clarity4.7 ftNo data
PhosphorusNo data10 µg/L
Chlorophyll-a (Algae)4.7 µg/L7 µg/L
Maximum Depth--
Surface Area19.1K acres133.0K acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophicmesotrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

Qacmainstfbk Lake wins on overall water quality with a Grade A versus Lake Audubon's Grade B. For fishing diversity, Qacmainstfbk Lake also leads with 0 species.