Skip to main content
LakeQuality

Irene Lake vs Miltona Lake

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

Miltona Lake has a higher water quality grade (A, Excellent) than Irene Lake (B, Good). Both are in Douglas County, Minnesota.

Irene Lake and Miltona Lake are both in Minnesota — 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: Irene Lake (B) and Miltona 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

Irene Lake

Douglas County, Minnesota

Good clarity, visible to about 10.7 ft.

A

Miltona Lake

Douglas County, Minnesota

Crystal clear, you can see 18.8 ft down.

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.

MetricIrene LakeMiltona Lake
Overall GradeB (Good)A (Excellent)
Water Clarity10.7 ft18.8 ft
Phosphorus22.5 µg/L17 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth44 ft105 ft
Surface Area639.26 acres5.7K acres
Public AccessYesYes
Fish Species11
Trophic Statemesotrophicoligotrophic

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

Verdict

Miltona Lake wins on overall water quality with a Grade A versus Irene Lake's Grade B. Water clarity: 18.8 ft vs 10.7 ft. For fishing diversity, Miltona Lake also leads with 1 species.