Lake Koshkonong, Wisconsin, USA

Sprawled across southern Wisconsin, just a few miles down the Rock River from Fort Atkinson, Lake Koshkonong is a fantastic place to boat and fish. The Southern Savanna Region lake has a rich history, plentiful wildlife and thousands of acres of beautiful water to draw visitors from all over. Formed by the construction of the Indianford Dam in 1846, Lake Koshkonong is a large shallow lake with a maximum depth – READ THE FULL ARTICLE

Welcome to the ultimate guide to Lake Koshkonong! Article topics include:

Looking for Lake Koshkonong cabins or other accommodations? Save time and use this interactive map to find, compare and book at the best rates. Or explore more of our favorite travel partners.

Welcome to the ultimate guide to Lake Koshkonong! Article topics include:

Looking for Lake Koshkonong cabins or other accommodations? Save time and use this interactive map to find, compare and book at the best rates. Or explore more of our favorite travel partners.

All About Lake Koshkonong

Lake Locations: USA - Midwest - Wisconsin - Southern Savanna Region -

Sprawled across southern Wisconsin, just a few miles down the Rock River from Fort Atkinson, Lake Koshkonong is a fantastic place to boat and fish. The Southern Savanna Region lake has a rich history, plentiful wildlife and thousands of acres of beautiful water to draw visitors from all over.

Formed by the construction of the Indianford Dam in 1846, Lake Koshkonong is a large shallow lake with a maximum depth of only seven feet. It is an impoundment of the Rock River which makes up both the inflow and outflow of the lake. The lake stretches across parts of Dane, Jefferson, and Rock Counties in southern Wisconsin. Before the construction of the dam the area now covered by the lake was part of a very large rice field with water so shallow and rice so thick it looked more like a meadow than a lake. Accounts written at the time describe millions of ducks landing in the field to eat the rice, at times almost covering the sun and darkening the sky. Occasionally horses and their riders got turned around and even lost in the huge field.

Clouden and Luke Stoughton built Indianford Dam to operate a sawmill raising water levels and expanding the surface area of Lake Koshkonong to 10,460 acres. By the early 1900’s higher water levels and invading hungry carp had killed most of the vegetation and rice. The wooden Indianford Dam was replaced with a concrete dam in 1917, and by 1929 it was owned by Wisconsin Power and Light Company who rebuilt it again in 1931. The dam generated power until 1961 when it became cost prohibitive to do so. In 1965 Wisconsin Power and Light Company transferred ownership of Indianford Dam to Rock County.

In 1974, there was an attempt by several Wisconsin power companies to build a nuclear power plant at Lake Koshkonong, but the proposal was denied because the lake is so shallow it was feared the plant would run out of water during drought years. Because three counties benefit from the lake, figuring out who was responsible for the dam became an issue and the dam suffered damage because of lack of maintenance. The Rock-Koshkonong Lake District (RKLD) was established and imbued with the power to levy taxes to protect and maintain Lake Koshkonong. The Wisconsin Department of Natural Resources controls the water levels on the lake and draws the water down slightly in the winter. The Rock-Koshkonong Lake District appealed to the Wisconsin DNR to raise lake levels seven inches and eliminate the winter draw down, but their request was denied. Proponents of the surrounding wetlands believe increasing the water levels would permanently damage surrounding wetland habitat and threaten the species of plants and animals that make it their home.

The Wisconsin DNR stocks Lake Koshkonong, and the lake is full of fish. There are healthy populations of perch, channel catfish, bluegill, crappie, largemouth bass, smallmouth bass and white bass. In the winter, anglers can ice fish, and the walleye are abundant. Even with its shallow depth the lake is a great place to boat, and there is plenty of room for power boats, pontoon boats and paddle boats along with sail boats and canoes. The lake is also popular with waterskiers and jet skiers.

Lake Koshkonong is named for Fort Koshkonong commanded by General Henry Atkinson during the Black Hawk War. Indian War Chief Black Hawk led the fight against the US Army for control of land in the Midwest. The fort lies in the present day town of Fort Atkinson. A visit to the reconstructed fort and charming town of Fort Atkinson is a great addition to a Lake Koshkonong getaway. Fort Atkinson has shops, restaurants, and various accommodations. For visitors who want to extend their stay, lakefront vacation rentals are available, and real estate is for sale in town and around the Lake Koshkonong shoreline.

Madison, Wisconsin’s capital and home of the University of Wisconsin, is about a 30-minute drive northwest of Lake Koshkonong. The Olbrich Botanical Gardens, located in Madison near the shore of Lake Monona, features 16 acres of outdoor gardens for leisurely strolling. Olbrich features a rose garden, a sunken garden, and a Thai pavilion and garden. The Bolz Conservatory houses indoor and holiday displays, including exotic plants, orchids, birds, and a waterfall.

With several groups including the RKLD watching over the water quality of Lake Koshkonong, it is sure to delight visitors far into the future. There is something to please everyone on beautiful Lake Koshkonong.

Things to Do at Lake Koshkonong

  • Vacation Rentals
  • Fishing
  • Boating
  • Sailing
  • Canoeing
  • Jet Skiing
  • Water Skiing
  • Horseback Riding
  • Waterfall
  • Wildlife Viewing
  • Birding

Fish Species Found at Lake Koshkonong

  • Bass
  • Black Bass
  • Bluegill
  • Carp
  • Catfish
  • Channel Catfish
  • Crappie
  • Largemouth Bass
  • Perch
  • Smallmouth Bass
  • Sunfish
  • Walleye
  • White Bass

All About Lake Koshkonong

Best hotels and vacation rentals at Lake Koshkonong

The Lake Koshkonong map shown above is a simple and stress-free way to search for trip accommodations. But if you want to take a deeper dive to find the ideal waterfront home, cabin, condo, hotel or resort, visit our favorite lodging partners by clicking the buttons below.

Note: These are affiliate links so we may earn a small commission if you book through them. While there is no extra cost to you, it helps provide resources to keep our site running (thank you)! You can read our full disclosure policy here.


More Ways to Book a Lake Koshkonong Vacation

While our interactive map above is perfect for comparing LAKENAME rental homes (with VRBO) and nearby hotels (with Booking.com), there might be times when you need to expand your search with a different type of accommodation. Here are some other LAKNAME lodging partners you might want to explore:

Check TripAdvisor
Explore RV Rentals
Find a Campspot
View All Resources

Note: These are affiliate links and we may earn a small commission. Read our full disclosure policy here.


More Sites to Book a Lake Koshkonong Vacation

Our interactive lodging map shown above is perfect for comparing LAKENAME VRBO rental homes and nearby Booking.com hotels, there are times when you need to expand your search for different types of accommodation. Here are some other LAKNAME lodging partners you can explore:

Check TripAdvisor
Explore RV Rentals
Find a Campspot
View All Resources

Note: These are affiliate links and we may earn a small commission. Read our disclosure policy here.


More Sites to Book a Lake Koshkonong Vacation

Our interactive lodging map shown above is perfect for comparing LAKENAME VRBO rental homes and nearby Booking.com hotels, there are times when you need to expand your search for different types of accommodation. Here are some other LAKNAME lodging partners you can explore:

Check TripAdvisor
Explore RV Rentals
Find a Campspot
View All Resources

Note: These are affiliate links and we may earn a small commission. Read our disclosure policy here.


Recommended Sites to Book a Lake Koshkonong Vacation

If you want to take a deeper dive to find waterfront lake cabins, cottages, condos, hotels or resorts, check out our favorite Lake Koshkonong lodging partners.

  • VRBO – Use VRBO to find the perfect lake rental home, condo, cabin, cottage or other vacation property.
  • Booking.com – One of the world’s leading digital travel companies, Booking.com connects travelers to everything from cozy B&Bs to luxury resorts.
  • Expedia – Expedia is a popular online travel agency with more than 140,000 lodging properties worldwide.
  • Hotels.com – With more than 325,000 hotels in 19,000-plus locations, Hotels.com is an industry leader in online accommodations.
  • TripAdvisor – Read traveler reviews and compare prices on hotels, vacation rentals and more at TripAdvisor.
  • Trivago – Trivago helps travelers compare deals for hotels and other accommodations from a variety of booking sites.
  • KAYAK – KAYAK scours hundreds of other travel websites at once to find the best deals on hotels and other travel-related services.
  • RVshare –RVshare connects travelers interested in renting a motorhome with owners who have RVs to rent.
  • CampSpot – Campspot offers premier RV resorts, family campgrounds, cabins and glamping options across North America.
ALL TRAVEL RESOURCES

Note: These are affiliate links so we may earn a small commission if you book through them. While there is no extra cost to you, it helps provide resources to keep our site running (thank you)! You can read our full disclosure policy here.

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Lake Type: Artificial Reservoir, Dammed

Water Level Control: Wisconsin Department of Natural Resources

Surface Area: 10,460 acres

Shoreline Length: 27 miles

Normal Elevation (Full Pond): 776 feet

Minimum Elevation (Min Pond): 774 feet

Maximum Elevation (Max Pond): 780 feet

Average Depth: 5 feet

Maximum Depth: 7 feet

Water Volume: 55,792 acre-feet

Completion Year: 1846

Water Residence Time: 15.6 days

Lake Area-Population: 11,621

Drainage Area: 2,300 sq. miles

Trophic State: Eutrophic

We strive to keep the information on LakeLubbers as accurate as possible. However, if you’ve found something in this article that needs updating, we’d certainly love to hear from you! Please fill out our Content Correction form.

More Lake Koshkonong news from LakeLubbers.com

  • Advertise your vacation rental property or local business: DETAILS HERE
  • The Lake Koshkonong forum has been discontinued: HERE’S WHY
  • New Lake Koshkonong photos coming soon!
  • You’re invited to join our lake-lovin’ community on Facebook and Instagram!
  • Share this Lake Koshkonong article with your fellow LakeLubbers:

Do you have a vacation rental property at Lake Koshkonong? Coming in 2022, LakeLubbers will have an opportunity for you to showcase your listing and put it in front of thousands of lake lovers searching our site for homes, condos or townhomes to rent for their upcoming lake trip this season.

Please get in touch with our advertising team HERE and we’ll provide you more details on this upcoming advertising opportunity.

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Looking for the Lake Koshkonong forum?

LakeLubbers previously offered visitors the ability to create accounts and participate in lake forums. When we overhauled the site’s content management system in 2021 we had to disable those features. We’re evaluating options and welcome your comments and feedback here.

We also encourage you to join our lake-lovin’ community on Facebook and Instagram!

Click here to advertise your Lake Koshkonong vacation rental or local business.

The former Lake Koshkonong forum is closed. Find out why here.

New Lake Koshkonong photo gallery is coming soon.

Please share this article with your fellow lake lovers!

Spread the word! Share our Lake Koshkonong article with your fellow Lake Lubbers!

Explore local Lake Koshkonong vacation rentals and hotel accommodations using our interactive map. Clicking on listings below will allow you to compare nearby properties, best rates and availability for your dates.

Looking for the old Lake Koshkonong forum group? Click Here

New Lake Koshkonong photos coming soon!

Vacation Home Name

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  • 2 bedrooms
  • 2 bathrooms
  • hot tub
  • wifi