Minnesota · ranked from DNR surveys
Best bluegill lakes in Mahnomen County
13 surveyed bluegill lakes sit in Mahnomen County; the 9 ranked here cleared this site's grade rubric, which reads DNR survey catch rates, size structure and trophy history the same way the live map does for every lake.
Snider Lake leads at grade A, with 55.9 bluegill per net in trap nets in its 2023 survey and a 9-inch fish the biggest measured. Island Lake is next at A−, 45.2 bluegill per net in trap nets in its 2025 survey, 1% of the bluegill netted over 8 inches. Tulaby Lake rounds out the top three at A−, a 9-inch fish the biggest measured.
| # | Lake | Grade | Acres | Survey catch rate | Over 8" | Biggest Surveyed | Avg wt | Surveyed |
|---|---|---|---|---|---|---|---|---|
| 1 | Snider Lake | A | 634 | 55.9/net in trap nets | 8% | 9" | 0.1 lb | 2023 |
| 2 | Island Lake | A− | 616 | 45.2/net in trap nets | 1% | 10" | 0.1 lb | 2025 |
| 3 | Tulaby Lake | A− | 832 | 44.2/net in trap nets | 2% | 9" | 0.1 lb | 2025 |
| 4 | South Twin Lake | B+ | 1,127 | 17.2/net in trap nets | 3% | 9" | 0.1 lb | 2024 |
| 5 | Roy Lake | B | 695 | 102.8/net in trap nets | 0% | 7" | 0.1 lb | 2023 |
| 6 | North Twin Lake | B− | 966 | 4.8/net in trap nets | 58% | 10" | 0.4 lb | 2024 |
| 7 | Sargent Lake | B− | 138 | 15.2/net in trap nets | 23% | 9" | 0.2 lb | 2025 |
| 8 | Bass Lake | C+ | 735 | 7.6/net in trap nets | 7% | 9" | 0.2 lb | 2022 |
| 9 | Church Lake | C | 174 | 5.3/net in trap nets | 17% | 10" | 0.3 lb | 2010 |
Also ranked in Mahnomen County: Walleye · Northern pike · Largemouth bass · Crappie · Yellow perch
All of Minnesota: Best bluegill lakes in Minnesota
Grades are this site's rubric over Minnesota DNR survey data (catch per unit effort against DNR benchmarks, size structure, trophy history). See any lake's page for the underlying numbers. Survey years vary by lake; the table shows each lake's latest.