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LakeQuality

Mormon Trail Lake vs Nodaway Lake

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

Mormon Trail Lake has a higher water quality grade (C, Fair) than Nodaway Lake (D, Poor). Both are in Adair County, Wisconsin.

Mormon Trail Lake and Nodaway Lake are both in Iowa — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. The grades are close: Mormon Trail Lake (C) and Nodaway Lake (D) 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.

C

Mormon Trail Lake

Adair County, Wisconsin

Murky, only visible to about 6.2 ft.

D

Nodaway Lake

Adair County, Wisconsin

Very murky, less than 2.8 ft of visibility.

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.

MetricMormon Trail LakeNodaway Lake
Overall GradeC (Fair)D (Poor)
Water Clarity6.2 ft2.8 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)9.7 µg/L27.6 µg/L
Maximum Depth--
Surface Area33 acres27 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

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

Verdict

Mormon Trail Lake wins on overall water quality with a Grade C versus Nodaway Lake's Grade D. Water clarity: 6.2 ft vs 2.8 ft. For fishing diversity, Mormon Trail Lake also leads with 0 species.