MN · ranked by public data
32 Cass County lakes have exact-water DNR survey evidence for walleye; 32 lakes with status, survey, or report evidence met our criteria, out of 612 documented lakes in the county. Updated July 2026.
Ranked within standard summer july mn class 23 standard gill nets normal 1 to 5 catch per effort (fish per net set) — ranks restart at 1
Cass County, MN
100.0 within-system score · 2,765 lake-scale opportunity index · 3.75 fish/net set · 2024 DNR survey
Cass County, MN
63.4 within-system score · 749 lake-scale opportunity index · 3.33 fish/net set · 1968 DNR survey
Cass County, MN
50.9 within-system score · 745.6 lake-scale opportunity index · 2 fish/net set · 1979 DNR survey
Cass County, MN
43.6 within-system score · 483.7 lake-scale opportunity index · 1.33 fish/net set · 2019 DNR survey
Cass County, MN
10.7 within-system score · 179.2 lake-scale opportunity index · 0.5 fish/net set · 1979 DNR survey
Cass County, MN
6.4 within-system score · 106.5 lake-scale opportunity index · 0.75 fish/net set · 1989 DNR survey
Ranked within standard summer august mn class 23 standard gill nets normal 1 to 5 catch per effort (fish per net set) — ranks restart at 1
Cass County, MN
97.7 within-system score · 1,127.2 lake-scale opportunity index · 4.33 fish/net set · 2024 DNR survey
Cass County, MN
62.9 within-system score · 1,194.5 lake-scale opportunity index · 1.62 fish/net set · 1990 DNR survey
Cass County, MN
31.8 within-system score · 411.6 lake-scale opportunity index · 1.83 fish/net set · 2022 DNR survey
Cass County, MN
18.0 within-system score · 358.3 lake-scale opportunity index · 1 fish/net set · 2022 DNR survey
| Rank | Lake | County | Acres | System score | Primary score signal | Survey measurement | Metric year | DNR status | Walleye stocking |
|---|---|---|---|---|---|---|---|---|---|
| 5 | Hay Lake | Cass | 364 | 7.1 | index 301.9 | 0.83 fish/net set | 2014 | No record | — |
| Ranked within standard summer june mn class 23 standard gill nets normal 1 to 5 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Horseshoe Lake | Cass | 260 | 90.0 | index 4,165.1 | 16 fish/net set | 1987 | No record | — |
| 2 | Grave Lake | Cass | 373 | 47.0 | index 704.6 | 1.89 fish/net set | 2014 | No record | — |
| 3 | Hay Lake | Cass | 364 | 32.1 | index 181.9 | 0.5 fish/net set | 2024 | No record | — |
| 4 | Bass Lake | Cass | 195 | 31.3 | index 161.6 | 0.83 fish/net set | 2023 | No record | — |
| 5 | Jack Lake | Cass | 142 | 8.4 | index 24.1 | 0.17 fish/net set | 2018 | No record | — |
| Ranked within standard summer august mn class 25 standard gill nets normal 1 3 to 5 5 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Boy Lake | Cass | 3,308 | 99.1 | index 19,846.5 | 6 fish/net set | 2021 | No record | — |
| 2 | Inguadona Lake | Cass | 1,133 | 60.1 | index 4,441 | 3.92 fish/net set | 2024 | No record | — |
| 3 | Girl Lake | Cass | 428 | 10.8 | index 762.2 | 1.78 fish/net set | 2007 | No record | — |
| 4 | Hand Lake | Cass | 289 | 0.2 | index 520.6 | 1.8 fish/net set | 1990 | No record | — |
| Ranked within standard summer july mn class 25 standard gill nets normal 1 3 to 5 5 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Boy Lake | Cass | 3,308 | 88.1 | index 12,999.5 | 3.93 fish/net set | 2025 | No record | — |
| 2 | Inguadona Lake | Cass | 1,133 | 79.3 | index 5,574 | 4.92 fish/net set | 2016 | No record | — |
| 3 | Blackwater Lake | Cass | 771 | 20.3 | index 1,542.9 | 2 fish/net set | 2023 | No record | — |
| 4 | Girl Lake | Cass | 428 | 1.3 | index 903.5 | 2.11 fish/net set | 1997 | No record | — |
| Ranked within standard summer july mn class 31 standard gill nets normal 1 3 to 5 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Little Wolf Lake | Cass | 525 | 90.0 | index 4,196.7 | 8 fish/net set | 1991 | No record | — |
| 2 | Bowen Lake | Cass | 182 | 40.2 | index 515.5 | 2.83 fish/net set | 2019 | No record | — |
| 3 | Little Webb Lake | Cass | 226 | 14.4 | index 226 | 1 fish/net set | 2006 | No record | — |
| 4 | Child Lake | Cass | 285 | 10.0 | index 142.5 | 0.5 fish/net set | 2024 | No record | — |
| Ranked within standard summer august mn class 31 standard gill nets normal 1 3 to 5 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Little Wolf Lake | Cass | 525 | 100.0 | index 1,804.6 | 3.44 fish/net set | 2024 | No record | — |
| 2 | Bowen Lake | Cass | 182 | 26.3 | index 606.6 | 3.33 fish/net set | 1967 | No record | — |
| 3 | Child Lake | Cass | 285 | 19.2 | index 855.1 | 3 fish/net set | 1978 | No record | — |
| Ranked within standard summer july mn class 35 standard gill nets normal 1 to 3 2 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Hovde Lake | Cass | 133 | 76.6 | index 831 | 6.25 fish/net set | 1995 | No record | — |
| 2 | Big Sand Lake | Cass | 731 | 66.9 | index 1,337.3 | 1.83 fish/net set | 2014 | No record | — |
| 3 | Crystal Lake | Cass | 190 | 10.0 | index 190.2 | 1 fish/net set | 2025 | No record | — |
| Ranked within standard summer june mn class 31 standard gill nets normal 1 3 to 5 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Little Wolf Lake | Cass | 525 | 90.0 | index 2,565.2 | 4.89 fish/net set | 2019 | No record | — |
| 2 | Bowen Lake | Cass | 182 | 45.1 | index 515.5 | 2.83 fish/net set | 2024 | No record | — |
| 3 | Little Webb Lake | Cass | 226 | 6.0 | index 226 | 1 fish/net set | 2022 | No record | — |
| Ranked within standard summer august mn class 27 standard gill nets normal 3 3 to 8 8 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Lake Ada | Cass | 963 | 55.0 | index 3,275.3 | 3.4 fish/net set | 1975 | No record | — |
| 2 | Lake Thirteen | Cass | 555 | 45.0 | index 2,955.6 | 5.33 fish/net set | 2014 | No record | — |
| Ranked within standard summer august mn class 35 standard gill nets normal 1 to 3 2 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Crystal Lake | Cass | 190 | 100.0 | index 1,616.7 | 8.5 fish/net set | 2015 | No record | — |
| 2 | Hovde Lake | Cass | 133 | 0.0 | index 1,063.7 | 8 fish/net set | 1990 | No record | — |
| Ranked within standard summer july mn class 22 standard gill nets normal 4 to 9 6 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Gull Lake | Cass | 10,010 | 65.0 | index 56,756.5 | 5.67 fish/net set | 2025 | No record | — |
| 2 | Little Boy Lake | Cass | 1,452 | 35.0 | index 17,420 | 12 fish/net set | 2012 | No record | — |
| Ranked within standard summer july mn class 27 standard gill nets normal 3 3 to 8 8 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Lake Thirteen | Cass | 555 | 90.0 | index 3,698.6 | 6.67 fish/net set | 1979 | No record | — |
| 2 | Lake Ada | Cass | 963 | 10.0 | index 3,053.7 | 3.17 fish/net set | 2022 | No record | — |
| Ranked within standard summer july mn class 39 standard gill nets normal 1 5 to 5 8 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Little Sand Lake | Cass | 413 | 90.0 | index 1,239.9 | 3 fish/net set | 1996 | No record | — |
| 2 | Big Portage Lake | Cass | 902 | 10.0 | index 794.1 | 0.88 fish/net set | 2023 | No record | — |
| Ranked within standard summer june mn class 25 standard gill nets normal 1 3 to 5 5 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Girl Lake | Cass | 428 | 90.0 | index 668 | 1.56 fish/net set | 2012 | No record | — |
| 2 | Hand Lake | Cass | 289 | 10.0 | index 49.2 | 0.17 fish/net set | 2019 | No record | — |
| Ranked within standard summer june mn class 27 standard gill nets normal 3 3 to 8 8 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Lake Thirteen | Cass | 555 | 100.0 | index 2,495.3 | 4.5 fish/net set | 2025 | No record | — |
| 2 | Lake Ada | Cass | 963 | 0.0 | index 2,408.3 | 2.5 fish/net set | 1995 | No record | — |
| Ranked within standard summer june mn class 39 standard gill nets normal 1 5 to 5 8 catch per effort (fish per net set) — ranks restart at 1 | |||||||||
| 1 | Big Portage Lake | Cass | 902 | 90.0 | index 1,245.2 | 1.38 fish/net set | 2012 | No record | — |
| 2 | Little Sand Lake | Cass | 413 | 10.0 | index 90.9 | 0.22 fish/net set | 2013 | No record | — |
| Comparable standard summer august mn class 22 standard gill nets normal 4 to 9 6 catch per effort (fish per net set) — one lake recorded, no peer rank | |||||||||
| — | Little Boy Lake | Cass | 1,452 | — | — | 9.25 fish/net set | 1990 | No record | — |
| Comparable standard summer august mn class 29 standard gill nets normal 0 5 to 3 catch per effort (fish per net set) — one lake recorded, no peer rank | |||||||||
| — | Beuber Lake | Cass | 132 | — | — | 0.33 fish/net set | 1987 | No record | — |
| Comparable standard summer august mn class 39 standard gill nets normal 1 5 to 5 8 catch per effort (fish per net set) — one lake recorded, no peer rank | |||||||||
| — | Little Sand Lake | Cass | 413 | — | — | 0.29 fish/net set | 1983 | No record | — |
| Comparable standard summer july mn class 32 standard gill nets normal 0 5 to 2 3 catch per effort (fish per net set) — one lake recorded, no peer rank | |||||||||
| — | Island Lake | Cass | 184 | — | — | 0.33 fish/net set | 2002 | No record | — |
| Comparable standard summer june mn class 22 standard gill nets normal 4 to 9 6 catch per effort (fish per net set) — one lake recorded, no peer rank | |||||||||
| — | Little Boy Lake | Cass | 1,452 | — | — | 9.83 fish/net set | 2024 | No record | — |
| Comparable standard summer june mn class 28 standard gill nets normal 0 5 to 3 3 catch per effort (fish per net set) — one lake recorded, no peer rank | |||||||||
| — | Leavitt Lake | Cass | 122 | — | — | 0.5 fish/net set | 2022 | No record | — |
| Comparable standard summer june mn class 29 standard gill nets normal 0 5 to 3 catch per effort (fish per net set) — one lake recorded, no peer rank | |||||||||
| — | Beuber Lake | Cass | 132 | — | — | 0.2 fish/net set | 1996 | No record | — |
| Comparable standard summer june mn class 35 standard gill nets normal 1 to 3 2 catch per effort (fish per net set) — one lake recorded, no peer rank | |||||||||
| — | Hovde Lake | Cass | 133 | — | — | 1 fish/net set | 2005 | No record | — |
| Documented species evidence — unranked and alphabetical | |||||||||
| — | Lake Winnibigoshish | Cass | 56,471 | — | — | — | — | No record | — |
| — | Leech Lake | Cass | 103,444 | — | — | — | — | No record | — |
| — | Little Thunder Lake | Cass | 258 | — | — | — | — | No record | — |
Methodology
County ranks use the same statewide exact-family contract; systems with at least two eligible county peers restart at #1. The score is 55% survey rate × acreage, 35% survey rate, and 10% recency. Catch-per-effort × acreage is only an opportunity index, never a literal fish count. Documented acreage plus verified public or shore access are eligibility gates. Unsupported methods stay documented but unranked. See the complete definitions on the statewide walleye ranking.
FAQ
26 lakes receive at least one peer-backed, exact-lake numeric rank. Catch-per-effort systems separate species, phase, gear, unit, and sampled population; standardized adult-density estimates form their own system, so systems with at least two eligible county peers can each have a #1 in Cass County.
32 Cass County lakes have exact-water DNR survey evidence. Numeric rank still requires an exact comparable family plus the acreage and access gates.
Source data: Minnesota DNR LakeFinder fisheries surveys, lake classes, morphology, and public-access records. Rankings are LakeList's computed opinion from public agency data, not a DNR endorsement. Conditions and regulations change — verify access and rules before you go.