Minnesota · Cass County

Washburn Lake Fishing guide

Washburn Lake covers 1,590 acres in Cass County, Minnesota, reaching 111 ft at its deepest point. Average water clarity runs about 13.2 ft. The Minnesota DNR has surveyed the lake 27 times, most recently in 2025, with walleye, largemouth bass, smallmouth bass and northern pike in the nets.

Open the live map → Survey data

Depth to 111 ft · top 5 summer marks
Surface1,590 ac
Max depth111 ft
Clarity13.2 ft
Littoral47%
Surveyed2025

DNR survey data

Fish species

Species
How many
Survey numbers
Lengths
WalleyeLast stocked 2024
Fair numbers
2.6per gill net
19"Typical
27"Biggest
8"27"

Lengths measured · 86 fish

Recent · 2021 + 2023 + 2024
5"10"15"20"25"27"

Lengths measured · 13 fish

2025
5"10"15"20"25"27"

Lengths measured · 35 fish

2024
5"10"15"20"25"27"

Lengths measured · 10 fish

2024
5"10"15"20"25"27"

Lengths measured · 9 fish

2023
5"10"15"20"25"27"

Only 9 fish measured that year — too few to read as a shape.

Largemouth bass
Just a few
6.2per hr (electrofishing)
10"Typical
17"Biggest
6"17"

Lengths measured · 49 fish

Recent · 2021 + 2023 + 2024
6"8"10"12"14"16"17"

Lengths measured · 21 fish

2024
6"8"10"12"14"16"17"

Lengths measured · 5 fish

2023
6"8"10"12"14"16"17"

Only 5 fish measured that year — too few to read as a shape.

Lengths measured · 23 fish

2021
6"8"10"12"14"16"17"

Lengths measured · 7 fish

2017
6"8"10"12"14"16"17"

Only 7 fish measured that year — too few to read as a shape.

Smallmouth bass
Just a few
0.9per hr (electrofishing)
15"Typical
19"Biggest
5"19"

Lengths measured · 44 fish

Recent · 2021 + 2023 + 2024
5"10"15"19"

Lengths measured · 22 fish

2024
5"10"15"19"

Lengths measured · 6 fish

2023
5"10"15"19"

Only 6 fish measured that year — too few to read as a shape.

Lengths measured · 16 fish

2021
5"10"15"19"

Lengths measured · 14 fish

2017
5"10"15"19"
Northern pike
Just a few
3.6per gill net
18"Typical
36"Biggest
10"36"

Lengths measured · 126 fish

Recent · 2021 + 2023 + 2024
10"15"20"25"30"35"37"

Lengths measured · 64 fish

2024
10"15"20"25"30"35"37"

Lengths measured · 11 fish

2023
10"15"20"25"30"35"37"

Lengths measured · 51 fish

2021
10"15"20"25"30"35"37"

Lengths measured · 49 fish

2017
10"15"20"25"30"35"37"
Bluegill
Just a few
11.8per trap net
6"Typical
9"Biggest
3"9"

Lengths measured · 404 fish

Recent · 2021 + 2023 + 2024
3"4"6"8"9"

Lengths measured · 44 fish

2024
3"4"6"8"9"

Lengths measured · 180 fish

2023
3"4"6"8"9"

Lengths measured · 180 fish

2021
3"4"6"8"9"

Lengths measured · 33 fish

2017
3"4"6"8"9"
Crappie
Just a few
1.8per trap net
7"Typical
12"Biggest
4"12"

Lengths measured · 100 fish

Recent · 2021 + 2023 + 2024
4"6"8"10"12"

Lengths measured · 33 fish

2024
4"6"8"10"12"

Lengths measured · 27 fish

2023
4"6"8"10"12"

Lengths measured · 40 fish

2021
4"6"8"10"12"

Lengths measured · 17 fish

2017
4"6"8"10"12"
Yellow perch
Just a few
0.6per gill net
6"Typical
7"Biggest
5"7"

Lengths measured · 19 fish

Recent · 2021 + 2024
5"6"7"

Lengths measured · 1 fish

2024
5"6"7"

Only 1 fish measured that year — too few to read as a shape.

Lengths measured · 18 fish

2021
5"6"7"

Lengths measured · 2 fish

2017
5"6"7"

Only 2 fish measured that year — too few to read as a shape.

Lengths measured · 4 fish

2015
5"6"7"

Only 4 fish measured that year — too few to read as a shape.

Rock bass
Good numbers
1.4per trap net
8"Typical
10"Biggest
3"10"

Lengths measured · 94 fish

Recent · 2021 + 2023 + 2024
3"4"6"8"10"

Lengths measured · 38 fish

2024
3"4"6"8"10"

Lengths measured · 23 fish

2023
3"4"6"8"10"

Lengths measured · 33 fish

2021
3"4"6"8"10"

Lengths measured · 18 fish

2017
3"4"6"8"10"

Rates come from standard DNR survey gear (gill nets, trap nets, electrofishing), judged against statewide benchmarks for the same gear, so the same number of fish per net can read differently for two species. Where the standard gear can't count a species reliably, only presence and size are listed. Typical is the middle fish of those measured. Open a row for the full length spread, survey by survey.

How to fish Washburn Lake through the year

Walleye

Spring
Walleye are shallow, on and just off the spawning flats and the first green weeds. At 13.2 ft of clarity, fish them deeper and lighter than usual.
Early summer
Walleye are setting up on the outside weed edge, points and shallow structure.
Summer
Walleye are working the weed edge, points and any wind-blown structure. On a lake that drops to 111 ft, check the deep edge of that structure too.
Fall
Walleye are packing onto the sharpest breaks and points as the water cools, in big schools with short windows.

Largemouth bass

Spring
Largemouth are moving up into the warming bays and flats, staging around wood, docks and new weeds to spawn. At 13.2 ft of clarity, fish them deeper and lighter than usual.
Early summer
Largemouth are on the shallow spawning flats and protected bays, where beds go on firm bottom next to isolated cover.
Summer
Largemouth are in and along the weeds: cabbage and milfoil edges, matted cover and shade. On a lake that drops to 111 ft, check the deep edge of that structure too.
Fall
Largemouth are chasing bait back onto the flats and into the remaining green weeds, feeding hard and shallow before the freeze.

Season patterns for each species. Open the live map for today's wind, light and water temp.

Size history

Biggest fish by survey year

Survey yearWalleyeLargemouth bassSmallmouth bass
202515"——
202424"17"17"
202324"10"19"
202219"——
202127"15"18"
202014"——
201919"——
201818"——

Longest fish measured by DNR survey crews in each year's nets. Survey gear samples the population, so the lake usually holds larger fish than any survey measured.

Suggested tackle

What to bring

Top presentations for this lake's structure and clarity:

Walleye · Live bait

Live-Bait (Lindy) Rig + Leech/Crawler

jumbo leech or half a nightcrawler

8–35 ftslow
Shop octopus hooks →

Walleye · Trolling

Leadcore Line + Crankbaits

4–5" mid-diving crankbait behind a long leadcore run

15–45 fttrolling
Shop deep-diving crankbaits →

Largemouth bass · Soft plastics

Texas-Rigged Worm

7" ribbon-tail or straight-tail plastic worm

1–25 ftdead slow
Shop plastic worms →

Largemouth bass · Soft plastics

Free Rig

Creature bait or magnum finesse worm

8–30 ftdead slowweedless
Shop creature baits →

Smallmouth bass · Soft plastics

Drop Shot (Finesse Plastic)

4" finesse worm or 3" minnow-profile plastic

8–40 ftdead slowweedless
Shop finesse plastics →

Smallmouth bass · Jigs & bladed

Tail Spinner

Compact lead body with a free-spinning blade on the tail

10–35 ftmoderate
Shop tail spinners →

Full setups, including hooks, weights and line, are on the live map. As an Amazon Associate I earn from qualifying purchases.

DNR stocking records

Stocking history

YearSpeciesStocked
2024Walleye12,716 fingerlings · 11,220 yearlings
2022Walleye56,000
2021Walleye3,638 fingerlings
2019Walleye750,000 fry
2018Walleye1,880 fingerlings · 358 yearlings · 384 adults
2016Walleye56,100

MN DNR · in their words

From the 2025 survey

Walleye are currently stocked in Washburn as frylings (when available) or fingerlings in alternate (even-numbered) years. Night electrofishing was conducted on September 24th, 2025, to assess young-of-the-year (YOY) Walleye abundance. The total sample time was 2 hours, which resulted in no YOY Walleye being captured. Previous catches ranged from 0 to 47.0 per hour. Walleye age 1 and older were captured at a rate of 6.5 per hour. These fish ranged in size from 7.4 to 15.8, with a mean length of 10.1 inches.

Narrative text from the Minnesota DNR lake survey.

Recent reports

Washburn Lake fishing reports

Recent reports on Washburn Lake from guides, tournaments and regular anglers. Anything posted in the last two weeks also bumps the matching spots on the live map, so you'll see a "matches a recent report" tag on them.

Open the live map → Fished it lately? Write a report

Cass County reports

Public water access

Getting on the water

DNR bathymetry

Washburn Lake depth map

Washburn Lake depth contour map, Cass County, Minnesota
Depth contours to 111 ft from Minnesota DNR bathymetry, free to save or print. The live map adds ranked spots and conditions on the same contours.

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

How deep is Washburn Lake?

Washburn Lake reaches 111 ft at its deepest point; about 47% of the lake is littoral (15 ft or shallower).

How big is Washburn Lake?

Washburn Lake covers 1,590 acres with about 19.8 miles of shoreline.

How clear is the water in Washburn Lake?

DNR Secchi readings on Washburn Lake average 13.2 ft of visibility, clear water for a Minnesota lake.

What fish are in Washburn Lake?

Minnesota DNR surveys (most recently 2025) record walleye, largemouth bass, smallmouth bass, northern pike, bluegill, crappie, yellow perch, rock bass.

Is Washburn Lake stocked?

Yes. The DNR stocked walleye in 2024; the stocking table on this page lists every year back to 2016.

Does Washburn Lake have a public access?

Yes. Washburn Lake has one public access site: Washburn Lake (trailer launch).

How big do walleye get in Washburn Lake?

The biggest walleye measured in recent DNR surveys taped 27"; the size-history table on this page tracks the biggest fish in each survey back to 2018.

When was Washburn Lake last surveyed?

The Minnesota DNR last surveyed Washburn Lake in 2025, the most recent of 27 surveys on record.

Page updated .

The live map adds today's conditions and ranked spots for Washburn Lake, plus a trip plan you can share:

Open Washburn Lake on the live map → Fished it lately? Write a report