Log in

Lake Mendota

Dane County · deep lake with a cold bottom layer (cisco water)

9,781Acres
83ftMax depth
42ftAverage depth
10Public launches

Today on Mendota

· Tomorrow & the week: Lake Report or Premium →

Best fishing times

All fish
GoodFairSlow
Best today…

Times by species available in Premium

Wind & weather

National Weather Service
Loading today's forecast…

What Mendota is best for

DNR data
WalleyeCommon · stocked8.5
BluegillPanfish, abundant8.4
PerchPanfish, abundant8.4
CrappiePanfish, abundant8.4
LargemouthCommon6.9
SmallmouthCommon6.9
Northern pikeCommon6.9
CatfishCommon6.9
MuskyPresent4.4
SturgeonPresent4.4
How we rate

Start from how common the DNR says the fish is (abundant 7.5, common 6, present 3.5). Add 1 if the DNR stocked it in the last 5 years, 0.6 for walleye in two-story or complex lakes, and up to 0.9 for lake size. The DNR counts bluegill, perch and crappie together as panfish, so they share a score.

Depth map

Wisconsin DNR
Sheets 3 to 3

The DNR drew Mendota on 3 sheets.

Tap a map to zoom. Pinch or scroll to zoom in, drag to move.

✕ Deepest spot, 83 ftDNR survey map (PDF)

Not for navigation. Old survey; depths and weed lines change.

Rules on this lake

DNR · checked 2026-10-07
Walleye18" min · 3 a dayMay 2, 2026 to March 7, 2027Open
Musky40" min · 1 a dayMay 2, 2026 to December 31, 2026 on open waterOpen
Northern pike40" min · 1 a dayMay 2, 2026 to March 7, 2027Open
Bass14" min · 5 a dayMay 2, 2026 to March 7, 2027Open
PanfishNo size limit · 10 a dayOpen All YearOpen
SturgeonNo fishingClosed
CatfishNo size limit · 10 a dayOpen All YearOpen
LicenseWisconsin fishing license. No trout or Great Lakes stamp needed here. How to buy one →
Full rules from the DNR

Launches & access

10 public
Bottommuck 40% · sand 29% · gravel 29% · rock 2%
Parks11
Lake groupFriends Of Lake Mendota (Flam) Middleton Beach Road Neighborhood Association Yahara Lakes Association Ltd

Stocking

DNR records
2024
49,252 walleye large fingerling, 7.68"
2022
263,546 walleye small fingerling, 1.52"
2020
49,210 walleye large fingerling, 7.55"
2018
3,550 walleye large fingerling, 7.9"
96,247 walleye large fingerling, 7.13"
2016
98,077 walleye large fingerling, 7"
2,500 northern pike large fingerling, 8"

The DNR has 99 fish surveys on file for this lake.

Before you go

DNR
How often it's safe to eat

This is health advice about eating fish, from the DNR. It is not how many you can catch or keep. Catch limits are in Rules.

Eat any amount Bluegill and Sunfish, Bullheads, Crappies, Inland Trout, Yellow Perch

Up to 1 meal a week Bass, Catfish, Pike, Walleye, All Other Species and Sizes

Up to 1 meal a month Muskies

Statewide advice; no lake-specific advisory. Stricter for women who may get pregnant and children under 15. DNR details
Invasive species here

Chinese Mystery Snail · Curly-Leaf Pondweed · Eurasian Water-Milfoil · Japanese knotweed (Fallopia japonica) · Rusty Crayfish · Spiny Waterflea · Zebra Mussel

Drain all water, remove plants and animals, and never move live fish or bait to another lake.

Mendota board

Catches & reports

Lakes near Mendota

Within 25 miles
LakeMilesAcresMax depth
Lake WingraDane3.634521 ft
Lake MononaDane43,27464 ft
Upper Mud LakeDane72238 ft
Lake WaubesaDane8.12,08034 ft
Mud LakeDane9.919515 ft
Indian LakeDane12.1666 ft
Lake KegonsaDane12.83,20931 ft
Crystal LakeColumbia16.45009 ft

Mendota questions

How deep is Lake Mendota?

Lake Mendota is 83 feet at its deepest, and 42 feet deep on average. It covers 9,781 acres.

What fish are in Lake Mendota?

The Wisconsin DNR lists panfish (abundant), largemouth bass (common), smallmouth bass (common), northern pike (common), walleye (common), catfish (common), musky (present) and sturgeon (present).

Where is the boat launch on Lake Mendota?

There are 10 public launches: Memorial Union, Governor Nelson State Park, Willow Drive Access, Tenney Park Boat Ramp, Middleton Boat Ramp, Governors Island, Spring Harbor, Mendota County Park Boat Launch, Marshall Park Boat Park and Warner Park.

Do I need a trout stamp to fish Lake Mendota?

A Wisconsin fishing license covers this lake. No trout or Great Lakes stamp needed here.

What is the walleye limit on Lake Mendota?

18" min · 3 a day. Season: May 2, 2026 to March 7, 2027.

Is Lake Mendota stocked?

Yes. In 2024 the DNR and partners stocked 49,252 walleye (large fingerling).

Fish it longer

Today's sheet is always free. Planning ahead takes a report or Premium.

Lake Sheet

Free
  • Today's best fishing times, all fish
  • Wind, weather, sun and moon
  • Depth map with depths labeled
  • Rules, license and species ratings
  • The printable two-page sheet

Lake Report

$19per lake
  • Your trip, up to 14 days
  • Pick your species
  • What to use, where, when and how, every day
  • Times by species on the bite clocks
Full Trip Guide + Report, $29. Adds where to stay, eat and drink, beaches, parks, groceries and local events.
Best for regulars

Premium

$59per season, billed yearly
  • Every lake, every day: times by species
  • Up to 25 full Lake Reports a season; more at $9 each or 25 for $49
  • Tomorrow and the week ahead on any lake
  • Stocking alerts for your lakes

Sources: Wisconsin DNR (lake facts, species, rules, stocking, consumption advice, survey map), National Weather Service (forecast). Sun and moon computed for the lake's location. Best times are a model of light and moon, not a promise. Checked 2026-10-07.