Thompson Lake — Otisfield & Oxford, Maine
One of Maine's Clearest and Most Pristine Lakes
Towns: Oxford, Otisfield, Poland, Casco
Lake Facts
- Surface Area: 4,419 acres
- Max Depth: 121 feet
- Mean Depth: 35 feet
- Shoreline: 32.2 miles
- Towns: Oxford, Otisfield, Poland, Casco
Thompson Lake is one of the larger and most pristine lakes in southern Maine's lakes region. Stretching eight miles long and nearly two miles wide across Oxford and Androscoggin counties, Thompson Lake is renowned for its exceptional water quality—ranking in the top 5% of Maine's cleanest and clearest lakes.