O'Leary
St. Louis County, Minnesota — DOW #69068500
34 Surveys
202.17
Acres
52 ft
Max Depth
25 ft
Mean Depth
9
Fish Species
33
Local Guides
DNR Fish Surveys
Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on O'Leary. Green = above normal range. Red = below normal.
Northern Pike
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2016-08-22 | Standard gill nets | 11.3 (above normal) | 1.8 – 5.5 | 2.50 lb | 68 |
| 2016-08-22 | 1/4-in trap nets | 0.3 | — | 3.22 lb | 1 |
| 2016-08-22 | Open-water angling | 2.0 | — | 3.23 lb | 2 |
| 2016-08-22 | Standard trap nets | 0.5 | — | 2.62 lb | 4 |
| 2001-08-27 | Standard gill nets | 10.5 (above normal) | 1.8 – 5.5 | 2.38 lb | 63 |
| 2001-08-27 | 1/4-in trap nets | 0.3 | — | — | 1 |
| 2001-08-27 | Standard trap nets | 1.0 | — | 1.76 lb | 9 |
Largemouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2016-08-22 | 1/4-in trap nets | 1.3 | — | — | 4 |
| 2016-08-22 | Standard trap nets | 0.1 (below normal) | 0.3 – 1.2 | 0.27 lb | 1 |
| 2016-08-22 | Standard gill nets | 0.3 (normal) | 0.2 – 1.1 | 2.39 lb | 2 |
Yellow Perch
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2016-08-22 | 1/4-in trap nets | 2.7 | — | 0.04 lb | 8 |
| 2016-08-22 | Standard trap nets | 0.3 (below normal) | 0.3 – 2.5 | 0.10 lb | 2 |
| 2016-08-22 | Standard gill nets | 0.8 (below normal) | 1.7 – 14.1 | 0.09 lb | 5 |
| 2001-08-27 | 1/4-in trap nets | 16.7 | — | — | 50 |
| 2001-08-27 | Standard trap nets | 1.0 (normal) | 0.3 – 2.5 | 0.09 lb | 9 |
| 2001-08-27 | Standard gill nets | 0.5 (below normal) | 1.7 – 14.1 | 0.07 lb | 3 |
White Sucker
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2016-08-22 | Standard gill nets | 0.5 (below normal) | 2.3 – 8.7 | 0.60 lb | 3 |
| 2001-08-27 | Standard gill nets | 0.3 (below normal) | 2.3 – 8.7 | 4.57 lb | 2 |
Walleye
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2016-08-22 | Standard gill nets | 3.3 (normal) | 2.0 – 9.7 | 2.54 lb | 20 |
| 2016-08-22 | Standard trap nets | 0.4 (normal) | 0.3 – 1.1 | 3.59 lb | 3 |
| 2001-08-27 | Standard gill nets | 2.7 (normal) | 2.0 – 9.7 | 2.85 lb | 16 |
| 2001-08-27 | Standard trap nets | 0.1 (below normal) | 0.3 – 1.1 | 2.26 lb | 1 |
Smallmouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2016-08-22 | Standard gill nets | 1.8 (normal) | 0.5 – 2.1 | 1.54 lb | 11 |
| 2016-08-22 | Open-water angling | 3.0 | — | 2.25 lb | 3 |
| 2001-08-27 | Standard gill nets | 1.7 (normal) | 0.5 – 2.1 | 1.77 lb | 10 |
| 2001-08-27 | 1/4-in trap nets | 2.3 | — | — | 7 |
Pumpkinseed
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2016-08-22 | Standard trap nets | 0.3 (below normal) | 1.0 – 5.2 | 0.04 lb | 2 |
| 2001-08-27 | Standard gill nets | 0.3 | — | 0.04 lb | 2 |
| 2001-08-27 | 1/4-in trap nets | 27.3 | — | — | 82 |
| 2001-08-27 | Standard trap nets | 1.2 (normal) | 1.0 – 5.2 | 0.04 lb | 11 |
Bluegill
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
|---|---|---|---|---|---|
| 2016-08-22 | Standard gill nets | 0.3 | — | 0.04 lb | 2 |
Tadpole Madtom
| Date | Gear | CPUE | Normal Range | Total Catch |
|---|---|---|---|---|
| 2001-08-27 | 1/4-in trap nets | 2.3 | — | 7 |
Golden Shiner
| Date | Gear | CPUE | Normal Range | Total Catch |
|---|---|---|---|---|
| 2001-08-27 | 1/4-in trap nets | 1.7 | — | 5 |
BNS
| Date | Gear | CPUE | Normal Range | Total Catch |
|---|---|---|---|---|
| 2001-08-27 | 1/4-in trap nets | 0.7 | — | 2 |
Depth Maps & Lake Info
Map & Directions
Get DirectionsShowing 14 nearby bait & tackle shops on the map.
Nearby Bait & Tackle
Nearby Marinas
Resorts & Lodges Near O'Leary
Plan your stay — fishing resorts and lodges near O'Leary.
Fish Species
Species known to inhabit O'Leary. Click any species for a full fishing guide.
Fishing Guides Near O'Leary
Other Lakes in St. Louis County
Plan Your Trip to O'Leary
- Weather forecast for O'Leary — check wind, rain, and temperature before you go
- GPS: 48.4159°N, 92.5355°W — Get Directions
- View on MN DNR LakeFinder for the latest survey data and lake info
- Review Minnesota fishing regulations for season dates and limits
- A Minnesota fishing license is required for ages 16+ — buy online at dnr.state.mn.us
Data sourced from Minnesota DNR Division of Fish and Wildlife. Last verified: March 19, 2026. Learn how we maintain this data.