Lake Mendota

Lake Mendota

Size
9,786ac
Boat Launch
Yes
Carry-in Launch
Yes
Toilet
No
Boat Dock
No
Species in Lake Mendota
Walleye
Walleye
Smallmouth bass
Smallmouth bass
Northern pike
Northern pike
Muskellunge
Muskellunge
Bluegill
Bluegill
White bass
White bass
Largemouth bass
Largemouth bass
Crappie
Crappie
Pumpkinseed
Pumpkinseed
Rock bass
Rock bass
Perch
Perch
Brown trout
Brown trout
Channel catfish
Channel catfish
Rainbow trout
Rainbow trout
Yellow Bass
Yellow Bass

Overview

Big water with deep structure. Famous for perch, crappie and white bass. Heavily stocked with walleye and northern.

Lake Mendota Map

Fishing Regulations

Special Fishing regulations: This lake has special fishing regulations that differ from statewide or border water regulations for those species identified below and take precedence. Regulations listed below are currently in place. Visit the fishing regulations page for links to upcoming regulations for specific lakes.

Special Waterbody Regulations

  • Bag limits are for fish caught in all lakes in the LAKE MENDOTA including CHEROKEE LAKE, UNNAMED LAKE OR POND T8N-R9E-S36 Catch and release fishing for largemouth and smallmouth bass is open year round unless otherwise noted. Motor Trolling is allowed with up to 3 hooks, baits, or lures, per angler.

Special Species Regulations

  • Lake sturgeon: Closed. No fishing allowed.
  • Largemouth bass and smallmouth bass: May 3, 2025 to March 1, 2026: The minimum length limit is 14” and the daily bag limit is 5
  • Ruffe: Open all year: The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office
  • Shovelnose sturgeon: Closed. No fishing allowed.
  • Trout and salmon: See Trout regulations layer.
  • White perch: Open all year: The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office
  • Bluegill: See Panfish.
  • Bowfin: See Rough Fish.
  • Channel catfish: See Catfish.
  • Crappies: See Panfish.
  • Flathead catfish: See Catfish.
  • Hybrid, Striped, Yellow, and White Bass: See Rock, Yellow and White Bass.
  • Longnose gar: See Rough Fish.
  • Largemouth bass: See Largemouth and Smallmouth Bass.
  • Walleye, Saugers, and Hybrids: May 3, 2025 to March 1, 2026: The minimum length limit is 18” and the daily bag limit is 3
  • Paddlefish: Closed. No fishing allowed.
  • Sauger and hybrids: See Walleye, Sauger, and Hybrids.
  • Shortnose gar: See Rough Fish.
  • Smallmouth bass: See Largemouth and Smallmouth Bass.
  • Urban waters gamefish: This waterbody is not considered an urban water, Urban Waters Gamefish regulations do not apply.
  • Walleye: See Walleye, Sauger, and Hybrids.
  • Panfish: Open all year: No minimum length limit and the daily bag limit is 10
  • Rough fish: Open all year: No minimum length limit and the daily bag limit is unlimited
  • Rock, Yellow, and White Bass: Open all year: No minimum length limit and the daily bag limit is unlimited
  • Round goby: Open all year: The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office
  • Northern pike: May 3, 2025 to March 1, 2026: The minimum length limit is 40” and the daily bag limit is 1
  • Cisco and whitefish: Open all year: No minimum length limit and the daily bag limit is 10
  • Catfish: Open all year: No minimum length limit and the daily bag limit is 10
  • Bullheads: Open all year: No minimum length limit and the daily bag limit is unlimited
  • Muskellunge and hybrids: May 3, 2025 to December 31, 2025: The minimum length limit is 40” and the daily bag limit is 1

Features

Located in south-central Wisconsin, bordered by the city of Madison and several other smaller communities, Lake Mendota is situated in a very urban setting. Several parks and beaches are scattered around the lake in the midst of residential and commercial development. Lake Mendota has been one of the most researched and surveyed lakes in the United States. The Wisconsin DNR has strictly regulated the fishery over the years due to the stocking efforts and immense popularity of the lake. As a result, several species like northern pike, walleye, and largemouth bass have special regulations compared to most Wisconsin lakes. Check the Wisconsin DNR fishing regulations manual for current restrictions. The lake is heavily used for many recreational activities including: fishing, boating, and swimming. Lake Mendota has several excellent locations for shore fishing. Due to the urbanized setting, the lake is at high risk for harmful contaminants as a result of runoff. The state has issued a consumption advisory for larger game species, like walleye and northern pike. As a very large, open body of water, heavy winds and heavy recreational use can create large unpredictable waves on the lake. Take caution when operating smaller watercraft on the lake.

Forage

Northern brook silverside, golden shiner, and emerald shiner comprise a large portion of the forage base. Perch, crappie, and other juvenile panfish are forage for large game species. Large game fish may also prey on cisco, when cisco are abundant.

Seasonal Movements

Several species migrate up the Yahara River inlet to spawn, including: walleye, crappie, northern pike and white bass. Northern pike and a few walleye migrate up Sixmile Creek to spawn in spring. Walleye are known to migrate to Tenney Park Dam, and the south shoreline along UW-Madison campus.
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Fish Species

Bluegill
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Low
2024
Surveyed
Electro
Catch Method
18.4672
0Statewide Range849.0614

Lake Mendota Bluegill abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Trophy Potential
This lake has a history of supporting trophy sized bluegill based on past surveys.
Survey YearLargest Fish (in)
20249
20219
201911
Brown trout
fish
12-13 in
Length Range
13 in
Length Range
2010
Surveyed
Abundance (CPUE)
Unknown
2010
Surveyed
NA
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2007
May
2010
Apr
Channel catfish
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Unknown
2024
Surveyed
NA
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Crappie
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Low
2024
Surveyed
Electro
Catch Method
1.8467
0Statewide Range84.8403

Lake Mendota Crappie abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Largemouth bass
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Below Avg.
2024
Surveyed
Electro
Catch Method
7.4157
0Statewide Range83.5649

Lake Mendota Largemouth bass abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Trophy Potential
This lake has a history of supporting trophy sized largemouth-bass based on past surveys.
Survey YearLargest Fish (in)
202420
202321
202220
201921
201720
Muskellunge
fish
50-51 in
Length Range
51 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2013
May
2019
Oct
Trophy Potential
This lake has a history of supporting trophy sized muskellunge based on past surveys.
Survey YearLargest Fish (in)
201950
Northern pike
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Above Avg.
2024
Surveyed
Electro
Catch Method
2.2472
0Statewide Range16.72075

Lake Mendota Northern pike abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Trophy Potential
This lake has a history of supporting trophy sized northern-pike based on past surveys.
Survey YearLargest Fish (in)
202138
201941
201738
201639
Perch
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Unknown
2024
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Pumpkinseed
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Low
2024
Surveyed
Electro
Catch Method
0.9234
0Statewide Range84.67115

Lake Mendota Pumpkinseed abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2021
May
2024
May
Rainbow trout
fish
12-13 in
Length Range
13 in
Length Range
2006
Surveyed
Abundance (CPUE)
Unknown
2006
Surveyed
NA
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2006
May
Rock bass
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Low
2024
Surveyed
Electro
Catch Method
1.8467
0Statewide Range62.50905

Lake Mendota Rock bass abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Smallmouth bass
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Above Avg.
2024
Surveyed
Electro
Catch Method
6.2921
0Statewide Range80.5292

Lake Mendota Smallmouth bass abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Trophy Potential
This lake has a history of supporting trophy sized smallmouth-bass based on past surveys.
Survey YearLargest Fish (in)
201919
201719
201618
Walleye
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
Above Avg.
2024
Surveyed
Electro
Catch Method
48.3146
0Statewide Range75.60845

Lake Mendota Walleye abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Trophy Potential
This lake has a history of supporting trophy sized walleye based on past surveys.
Survey YearLargest Fish (in)
201929
White bass
fish
8-25 in
Length Range
13 in
Length Range
2024
Surveyed
Abundance (CPUE)
High
2024
Surveyed
Electro
Catch Method
3.1461
0Statewide Range8.28085

Lake Mendota White bass abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2023
May
2024
May
Yellow Bass
fish
8-13 in
Length Range
11 in
Length Range
2022
Surveyed
Abundance (CPUE)
Unknown
2022
Surveyed
NA
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2019
May
2022
May