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LakeQuality

Free Peoples Lake vs Juanita Lake

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

Free Peoples Lake has a higher water quality grade (A, Excellent) than Juanita Lake (F, Very Poor). Both are in North Dakota.

Reviewed by LakeQuality Editorial Team · Updated

Free Peoples Lake and Juanita Lake are both in North Dakota — 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 meaningfully apart: Free Peoples Lake grades a A while Juanita Lake grades a F. That two-letter spread reflects real underlying differences — different watershed inputs, different depth profiles, or different monitoring rigor.

For a recreational visitor, the wider grade gap is decisive — Free Peoples Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

A

Free Peoples Lake

Benson County, North Dakota

No clarity data.

F

Juanita Lake

Foster County, North Dakota

Very murky, less than 1 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.

MetricFree Peoples LakeJuanita Lake
Overall GradeA (Excellent)F (Very Poor)
Water ClarityNo data1 ft
Phosphorus18.7 µg/LNo data
Chlorophyll-a (Algae)No data154.2 µg/L
Maximum Depth54 ft9.9 ft
Surface Area543.6 acres732.7 acres
Public AccessUnknownYes
Fish Species14
Trophic Statemesotrophichypereutrophic

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

Verdict

Free Peoples Lake wins on overall water quality with a Grade A versus Juanita Lake's Grade F. For more fish-species variety, Juanita Lake edges ahead with 4 documented species.