Skip to main content
LakeQuality

Long Lake and Plantagenet Lake read the same on nutrients and algae. Both are in Hubbard County, Minnesota.

Reviewed by LakeQuality Editorial Team · Updated

Both Long Lake and Plantagenet Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any differences in the readings here are about the lakes themselves, not the agencies sampling them. These two sit close on the readings, Long Lake versus Plantagenet Lake. The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

With readings 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.

Long Lake

Hubbard County, Minnesota

Good clarity, visible to about 11.2 ft.

Plantagenet Lake

Hubbard County, Minnesota

Moderate clarity, visible to about 7 ft.

Side-by-Side Metrics

MetricLong LakePlantagenet Lake
Water Clarity11.2 ft Better7 ft
Phosphorus10 µg/L Better20 µg/L
Chlorophyll-a (Algae)4.5 µg/L Better6.7 µg/L
Maximum Depth135 ft Better65 ft
Surface Area1,926 acres2,531 acres
Public AccessYesYes
Fish Species1420 Better
Trophic Statemesotrophicmesotrophic

A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.

Verdict

Both lakes earn the same Grade A. The tiebreakers come down to clarity (Long Lake: 11.2 ft, Plantagenet Lake: 7 ft) and what you want from the lake. Long Lake has fewer fish species than Plantagenet Lake.

Source: EPA National Aquatic Resource Surveys, 2026.