1
BAlice Lake
Itasca County, Minnesota · 1.4 mi from Round Lake
- +Two grade letters higher (D → B)
- ++2.9 ft water clarity
- +Lower phosphorus (12 vs 69 µg/L)
Cleaner Lakes Than Round Lake
5 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
Round Lake carries a Grade D (Poor) water quality score. Within 30 miles, 5 lakes hold a higher grade. Alice Lake (Itasca County, Grade B, 1.4 mi away) is the closest meaningful upgrade.
2
BGreeley Lake
Itasca County, Minnesota · 5 mi from Round Lake
- +Two grade letters higher (D → B)
- ++3.4 ft water clarity
3
CMiddle Pigeon Lake
Itasca County, Minnesota · 2.4 mi from Round Lake
- +Higher grade (D → C)
- ++1.9 ft water clarity
- +Lower phosphorus (29.5 vs 69 µg/L)
4
CDunbar Lake
Itasca County, Minnesota · 4.1 mi from Round Lake
- +Higher grade (D → C)
- +Lower phosphorus (35 vs 69 µg/L)
How this list is built
Every lake on LakeQuality has a calculated grade from EPA Water Quality Portal samples — secchi depth, total phosphorus, and chlorophyll-a measured against Metropolitan Council thresholds. To suggest cleaner alternatives, we filter lakes within 30 miles to those with a strictly higher numeric score, then rank by grade improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.