Minnesota · Dakota County

Marion Lake Fishing guide

Marion Lake is a 530-acre lake in Dakota County, Minnesota, reaching 21 ft at its deepest point. Average water clarity runs about 9 ft. The Minnesota DNR has surveyed the lake 12 times, most recently in 2021, with walleye, largemouth bass, northern pike and bluegill in the nets.

Open the live map → Survey data

Depth to 21 ft · top 5 summer marks
Surface530 ac
Max depth21 ft
Clarity9 ft
Littoral86%
Surveyed2021

DNR survey data

Fish species

Species
How many
Survey numbers
Lengths
WalleyeLast stocked 2025
Just a few
0.5per gill net
—Typical
24"Biggest
Largemouth bass
Present
0.6per gill net
—Typical
16"Biggest
Northern pike
Just a few
5.3per gill net
23"Typical
28"Biggest
13"28"

Lengths measured · 42 fish

Recent · 2021
12"15"20"25"30"32"

Lengths measured · 42 fish

2021
12"15"20"25"30"32"

Lengths measured · 52 fish

2017
12"15"20"25"30"32"

Lengths measured · 99 fish

2011
12"15"20"25"30"32"

Lengths measured · 49 fish

2005
12"15"20"25"30"32"
Bluegill
Present
5.9per gill net
5"Typical
7"Biggest
3"7"

Lengths measured · 403 fish

Recent · 2021
2"4"6"7"

Lengths measured · 356 fish

2021
2"4"6"7"

Lengths measured · 47 fish

2021
2"4"6"7"

Lengths measured · 307 fish

2017
2"4"6"7"

Lengths measured · 467 fish

2011
2"4"6"7"
Crappie
Present
1.4per gill net
7"Typical
8"Biggest
6"8"

Lengths measured · 11 fish

Recent · 2021
3"4"6"8"10"11"

Lengths measured · 11 fish

2021
3"4"6"8"10"11"

Lengths measured · 34 fish

2017
3"4"6"8"10"11"

Lengths measured · 262 fish

2011
3"4"6"8"10"11"

Lengths measured · 38 fish

2005
3"4"6"8"10"11"
Yellow perch
Fair numbers
2.1per gill net
6"Typical
8"Biggest
5"8"

Lengths measured · 17 fish

Recent · 2021
5"6"8"9"

Lengths measured · 17 fish

2021
5"6"8"9"

Lengths measured · 4 fish

2017
5"6"8"9"

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

Lengths measured · 92 fish

2011
5"6"8"9"

Lengths measured · 12 fish

2005
5"6"8"9"

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 Marion Lake through the year

Walleye

Spring
Walleye are shallow, on and just off the spawning flats and the first green weeds.
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. With 86% of this lake 15 ft or shallower, the weed edge is the main event.
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.
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. With 86% of this lake 15 ft or shallower, the weed edge is the main event.
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 bassNorthern pike
202124"16"28"
201724"19"30"
2016—18"—
201126"17"32"
200526"17"27"
200028"19"30"

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

Slip Bobber + Leech

jumbo or large leech

4–20 ftdead slow
Shop octopus hooks →

Walleye · Trolling

Snap Weights + Stickbaits

4–5" suspending or slow-floating stickbait

10–35 fttrolling
Shop trolling stickbaits →

Largemouth bass · Soft plastics

Texas-Rigged Worm

7" ribbon-tail or straight-tail plastic worm

1–25 ftdead slow
Shop plastic worms →

Largemouth bass · Jigs & bladed

Swim Jig + Paddletail Trailer

3.5–4.5" paddletail trailer on a bullet-nosed swim jig

1–10 ftmoderate
Shop swim jigs →

Northern pike · Hardbaits

Weedless Spoon + Trailer (Silver Minnow)

3/8–1/2 oz weedless spoon

1–8 ftslow
Shop weedless spoons →

Northern pike · Soft plastics

Paddletail Swimbait on Jighead

4–5" paddletail swimbait on a ball-head swimbait jighead

3–25 ftmoderate
Shop paddletail swimbaits →

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
2025Walleye114,000 fry
2024Walleye114,000 fry
2023Walleye1,419 fingerlings
2022Walleye7,560 fingerlings
2021Walleye454,000 fry
2019Walleye1,000,000 fry
2018Walleye456,000 fry
2017Walleye455,000 fry
2016Walleye460,000 fry

MN DNR · in their words

From the 2021 survey

Lake Marion is a 530 acre lake located in western Dakota County. It is primarily managed for Walleye, and secondarily for Largemouth Bass, and Bluegill. The 2021 spring trap netting survey was conducted to provide baseline information on Bluegill for the new 5-fish bag limit experimental fishing regulation that went into effect in 2021. The goal of this regulation on Marion Lake is to increase the size structure of Bluegill.

Nine trap nets were set on May 17, 2021 and lifted on May 18, 2021 catching a total of 355 Bluegill. Bluegill ranged in size from 3.5 inches up to 7.3 inches in length, with an average size of 5.5 inches. Aging structures (otoliths) were collected from 68 Bluegill. The largest number of fish were from 2016 (5 years old). The oldest Bluegill sampled in 2021 was determined to be from the 2012 year-class (9 years old). The size structure of Bluegill found in Marion Lake is below average for for East Metro-area lakes, with only 3% of the fish 7 inches or larger.

Narrative text from the Minnesota DNR lake survey.

Recent reports

Marion Lake fishing reports

Recent reports on Marion 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

Dakota County reports

Public water access

Getting on the water

DNR bathymetry

Marion Lake depth map

Marion Lake depth contour map, Dakota County, Minnesota
Depth contours to 21 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 Marion Lake?

Marion Lake reaches 21 ft at its deepest point; about 86% of the lake is littoral (15 ft or shallower).

How big is Marion Lake?

Marion Lake covers 530 acres with about 10.2 miles of shoreline.

How clear is the water in Marion Lake?

DNR Secchi readings on Marion Lake average 9 ft of visibility, middling clarity for a Minnesota lake.

What fish are in Marion Lake?

Minnesota DNR surveys (most recently 2021) record walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch.

Is Marion Lake stocked?

Yes. The DNR stocked walleye in 2025; the stocking table on this page lists every year back to 2016.

Does Marion Lake have a public access?

Yes. Marion Lake has 3 public access sites, including Marion Lake (trailer launch).

How big do walleye get in Marion Lake?

The biggest walleye measured in recent DNR surveys taped 24"; the size-history table on this page tracks the biggest fish in each survey back to 2000.

When was Marion Lake last surveyed?

The Minnesota DNR last surveyed Marion Lake in 2021, the most recent of 12 surveys on record.

Page updated .

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

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