Manitowoc County Lakes Association

to protect and enhance area lakes for the benefit of all

Cedar Lake

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Cedar Lake News

    Ice on Data for Cedar Lake

    From Scott Otterson, Cedar Lake

    The lake has frozen over and the "Ice On" data will be submitted to the DNR to expand our lake's database. Below is a chart showing my historical records of when Cedar Lake froze over. The chart shows the variability of the lake freezes.

    I also calculated the duration of the ice on the lake. I used my records of when Cedar Lake froze and the following spring when the lake's ice broke up. You will see on the chart from the trendline that the ice duration seems to be shortening. The trendline shows that the duration of ice on the lake has reduced 7 days over the last 20 years.

    read full article

read older news

Grand kids love fishing, too.
Don Fischer, 2/1/2017
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Click on the maps to enlarge. NOTE THAT MAP SHOWS LAKE LEVELS 3+ FEET LOWER THAN CURRENT STABLE LEVELS. Bathymetric Map Courtesy of and Copyright Sportsman’s Connection, based on Wisconsin DNR data. Watershed map courtesy of Manitowoc County Soil and Water Conservation Department. New! Zoom in even closer with this new interactive watershed mapping tool.  

MCLA Lake Director: Josh Knuth (alternates: Phil Knauf, Richard Jens)

Directions: Louis Corners Road, Town of Schleswig. Take Highway 151 West from Manitowoc to CTH A, South on CTH A approximately 6.5 miles to CTH XX. Travel west on CTH XX 1.5 miles to Louis Corners Road. Turn South on Louis Corners Road and follow approximately 1 mile. Boat Landing Located to the North.

About Cedar Lake

Lake Health


  • Features:  Road and launch area are blacktopped. 1-acre parking lot across Rockville Road, southwest of the access. Fishing area, port-a-pier, toilet building. No lighting, no potable water.
  • The Beach on Cedar Lake is privately owned by The Lake House restaurant. Please direct any questions about beach hours and beach rules to (920) 894-4711 or
  • Boat Ramp: 2 launch lanes, concrete ramp, 11% slope, > 3 ft launch depth, boarding dock. No power loading. The main parking area is located across the road from the launch entrance. 11-15 vehicle and trailer stalls.
  • Launch Fee: The daily fee is $5 and the seasonal fee is $20.
  • ADA Accessibility Features: There is designated accessible parking at the launch site. The route of travel, and the transition, to the boarding dock, is not ADA accessible (May/2015).
  • Restrictions: Motor boats are allowed. Slow no wake except Sundays 11-2 and Mon-Sat 11-6. See signs posted at lake for current restrictions. Counterclockwise boating. No power loading. Littering, Noise Levels, Swimming, and Water Skiing Restrictions. Lake levels have been high. It is hopeful that boaters will fast boat near the center of the lake. Wave action adds to sediment suspension and erosion — please fast boat as far away from the shores as safe and practical.  Town of Schleswig ordinance | Wisconsin boating handbook

Restrictions as posted, 2019


  • Surface Area: 136 acres
  • Depth: Max 21′, Mean 9′
  • Bottom: 10% sand, 45% gravel, 0% rock, 45% muck
  • Shorelength: 3.6 mi
  • Lake Type: Shallow Seepage. Shallow Seepage lakes do not stratify, or form separate layers of water, during the summer months and have no inlet or outlet.
  • Lat/Long: 43°55’31.5″N / 87°56’19.3″W

Aquatic Invasive Species Threats

*Lake residents and sportsmen report that no curly leaf pondweed has ever been reported on Cedar Lake since the 1993 sighting.


  • Fish present: Northern pike, black crappie, and bluegill common. Yellow perch, walleye and largemouth bass present.


  • View Cedar Lake fishing regulations on DNR website
  • Open All Year
    • Panfish: Daily bag limit 25. No min length.
    • Catfish: Daily bag limit 10. No min length.
  • Open 5/1/2021-3/6/2022:
    • Largemouth/smallmouth bass: 14″ Limit 5.
    • Northern Pike: 26″ Limit 2.
    • Walleye: 15″ Limit 5.
  • Motor Trolling is allowed with up to 3 hooks, baits, or lures, per angler.
  • Familiarize yourself with Wisconsin fishing:
    WDNR Hook & Line Guide
  • Consumption Advisory: General Manitowoc County/Mercury. Click here.

Stocking and DNR Surveys

Summary of DNR Species Sampling (2016)
fyke netting electroshocking
species number length (ave.) number length (ave.)
Northern Pike 160 8.9-28.4″ (18.9″) 8 14.8-25.7″ (20.8″)
Largemouth Bass 10 10.6-17.9″ (14.8″) 62 9.3-19.3″ (13.8″)
Walleye 9 15.1-26.2″ (21″)
Black Crappie 196 5.6-14.4″ (8.5″) 3 8.1-8.8″ (8.5″)
Bluegill 125 4.1-8.6″ (6.3″) 198 2.9-8.6″ (6″)
Pumpkinseed Sunfish 23 4-10.1″ (6.4″) 14 5-8.4″ (6.7″)
Green Sunfish 9 4.1-8.6″ (6.2″) 12 4.4-7.7″ (6.7″)
Rock Bass 6 7.6-9.3″ (8.5″)
Warmouth 5 5.2-8.5″ (6.7″) 3 5.8-6.8″
Hybrid Sunfish 4 13 5-7.8″ (6.4″)
Yellow Perch 2 6.0-7.8″ (6.9″)
White Sucker 2
Yellow Bullhead 301 9.5-12.4″ (11.1″) 17 11.2-12.2″ (11.7″)
Brown Bullhead 57 5.9-13.1″ (10.3″) 3 7.8-12.2″ (10.1″)
Golden Shiner 1
Common Carp 1

 DNR 2016 report conclusions 

  • Gamefish populations in Cedar Lake appear to be doing well. The 14” size limit for Largemouth Bass has helped the population. Previous surveys indicated an improvement in Northern Pike but results from 2016 survey were mixed. Walleye do not appear to survive well in Cedar Lake.
  • Panfish size and growth have improved over results from past surveys.
  • Forage fish numbers appear to be low—could lead to growth problems for gamefish.
  • Carp and bullhead are present but are causing few problems.

Fish Stocking Data Source

  • 2,000 5-6″ perch in mid-March 2013
  • 2,000 6″ walleyes in December 2014

Condition: EXCELLENT (2020) SE Bay Data / Source

  • 5-Year Average Trophic State: 42/Mesotrophic 
  • Secchi Disk: Average summer reading 11.55 ft. (SE Georegion average 6.5 ft.) Summer (July/Aug) water was reported as CLEAR and GREENGreen normally suggests a lake impacted by algae. However, since recent summer chlorophyll readings average less than 9 ug/l, this lake may have been impacted by another factor, such as suspended marl.
    a graph of water clarity readings all in the low teens since 2006
  • Chemistry:
    Average summer Chlorophyll 3.6 µg/l (SE Georegion average 21.7 µg/l).
    Average summer Total Phosphorus 17.3 µg/l.
    Lakes that have more than 20 µg/l and impoundments that have more than 30 µg/l of total phosphorus may experience noticeable algae blooms.
  • Trophic State Index (TSI): 44/Mesotrophic. What does this mean?
    Mesotrophic lakes contain moderate amounts of nutrients, and contain healthy, diverse populations of aquatic plants, algae, and fish. Occasional algae blooms may occur. If the lake is deep enough to stratify, the hypolimnion often becomes low in oxygen by the end of summer, and may result in some phosphorus release from the sediments. Mesotrophic lakes are characterized by moderately clear water, but have an increasing chance of low dissolved oxygen in deep water during the summer.

View TSI data graph on the DNR website


Click on the maps to enlarge. Bathymetric Map Courtesy of and Copyright Sportsman’s Connection, based on Wisconsin DNR data. Watershed map courtesy of Manitowoc County Soil and Water Conservation Department. New! Zoom in even closer with this new interactive watershed mapping tool.  

 Other documents of interest:

Updated: June 23, 2021 — 10:11 am


Add a Comment
  1. See web page under department tab Sanitary District 1 Cedar Lake for several current and past fish reports from the DNR along with other water quality data and information. Note that the 1966 DNR map reflects a lake level 3+ feet lower than current relatively stable lake level conditions. One island is a submerged obstruction now.

  2. Apparently the NO Fast Boating restriction applies at 2 pm Sundays. No where is this notice, except at the boat ramp. It needs to be updated so people are aware.

    1. Mr. Jeffery, thank you VERY MUCH for commenting on the need for better publicizing these boating restrictions. Your comment was forwarded to the lake director and we’ve now included images of the signs posted at the lake.

  3. Do you need a launch permit for this lake?

    1. Yes, fees are collected by honor system. The fees, which are collected by honor system, are $20/seasonal or $5/daily and go toward lake maintenance. There should be a station with envelopes at the launch where you can pay.

  4. Why the changes at the ramp parking? There are now only a few designated places to park a trailer. Half the lot is for vehicles without trailers only. Basically, only about 6 people can launch their boats and park now. It really sucks because after driving all the way there, we usually have to just turn around and leave now because you can’t park anywhere. The access to the lake is effectively reduced to only a few individuals and that’s it. Is this becoming a private lake now?

    1. We understand your concerns.  
      The new facilities allow for 9 boat and trailer spaces, 1 DNR/Sheriff spot and 8 car-only places.  The number of spaces is regulated under Wisconsin state legislative code NR 1.91(5)b. which states: “The department has determined that granting permits for boating access on bodies of water where the maximum access standards are exceeded will materially impair navigation and is detrimental to the public interest.”

      The chart in NR 1.91 shows inland lakes sized 100-499 acres with the following Maximum Public Boating Access: “One or more access sites which in total provide 1 car−trailer unit per 15 open water acres.”
      For Cedar Lake at 136 acres the maximum number of car-trailer units is 9 (136 acres/15).
      Since this is regulated by the state, neither the residents of Cedar Lake or the County of Manitowoc set these limits, we just follow the rules.
      We hope you continue to come out to Cedar Lake. Please contact us again if you have further questions.

  5. I want my $5 back from last night 6/2/2020!! We paid our fee but were unable to launch because there was ZERO place to park truck and trailer. You ABSOLUTELY need MORE parking for vehicles w/trailers. We left and went to another lake and paid to launch AGAIN!!

    1. Wendy, we noticed your request on the Manitowoc County Lakes Association website regarding the parking spaces at Cedar after you had paid a launch fee. 

      I understand the frustration. You need to contact the Manitowoc County Planning and Parks Department (920) 683-4185, as they collect the launch fees at all County lake accesses. I believe Pete Tarnowski from Planning and Parks can help you with the fee and explain the parking lot requirements.

      I hope this helps you navigate the process. 

      Tom Ward, 
      President of the County Lakes Association

    2. Hi Wendy,

      The Cedar Lake boat launch and parking are a county park and although it’s access to our lake, it is not maintained by Cedar Lake Improvement Association or our Sanitary District from the town of Schleswig but rather the Manitowoc County Parks. 

      I’m sorry they did not have space to park after depositing the funds. I am aware that there are limited spaces for vehicles to park per a DNR Reg 1.91 which regulates the number of public boat launch parking spots per the size/acreage of said lake.

      Manitowoc County did a great job last year updating the Cedar Lake boat launch and everyone has been appreciative of the work that went into it. There were parking spots added for boats as well as several new parking spots for cars without trailers (kayakers/canoes). Hope you have better luck next time and that we continue to have an amazing and warm summer. 

      Joshua Knuth, MCLA Cedar Lake Director

  6. Is it a private lake or a dnr lake?

    1. Hi Tom,
      Cedar Lake is a Public lake with public access. The access point is a Manitowoc County Park. 
      Cedar Lake has private property surrounding it as well.  Hope this helps!

  7. what are the swimming hours?

    1. Hi Jane,
      The beach on Cedar Lake is privately owned by The Lake House restaurant, so you would need to check with the establishment for beach hours and rules — (920) 894-4711. Rules and regulations pertaining to swimming from a boat are posted on the Town of Schleswig’s website here.
      Hope this helps!

  8. I would like to thank the Association for allowing use of the storage shed to cut lumber and fabricate boardwalk materials for a recent Ice Age Trail Alliance Mobile Skills Crew trail construction and improvement project. Dick Jens could not have been more accommodating. This two day assist was invaluable and we greatly appreciate it. Tim Malzhan, Trailway Director, Ice Age Trail Alliance.

    1. Thank you Tim. Glad to be a tiny part of this big project! MCLA

  9. Are Sundays hours any different for wake seeing as it is 4th if July?

    1. Hi Ashley.
      We’ve checked with the municipality to be certain.
      From Constable Ken Schuler:
      The hours on Sunday for fast boating will be the same as always from 11AM to 2PM and the hours on Monday will also not change—they will be from 11AM to 6PM.
      Enjoy your holiday!

  10. Do you need to pay a launch fee for an inflatable kayak or inflatable i person pontoon boat where one is not using a boat trailer?


    1. Hi Dan,
      Manitowoc County has a launch fee but it is not a mandate.
      Funds collected are used to improve and maintain the launches. 
      If you are using the launch and parking lot it is appropriate to contribute but not mandatory. 
      Hope this helps.

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