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Rock Lake

Jefferson County - Wisconsin
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Rock Lake is a natural freshwater lake located in south-central Wisconsin, United States. It is situated in Jefferson County and is surrounded by the towns of Lake Mills, Aztalan, and Milford. The lake covers an area of approximately 1,365 acres and has a maximum depth of 50 feet.

Rock Lake is known for its clear water and abundant fish population, making it a popular spot for fishing, boating, and other water-based activities. The lake is home to a variety of fish species, including northern pike, walleye, bass, and panfish.

In addition to its recreational opportunities, Rock Lake is also known for its archaeological significance. The area surrounding the lake was once inhabited by the Mississippian culture, and several mounds and earthworks have been discovered in the area. The most notable of these is the Aztalan State Park, which contains a well-preserved ancient settlement and is now a National Historic Landmark.

Overall, Rock Lake offers a unique blend of natural beauty and historical significance, making it a popular destination for tourists and locals alike.


Each week we're giving away a $25 Kiwk Trip gift card to one lucky angler. All you need to do is upload a pic of your catch for a chance to win! Click here to see last week's winner.
Caught by Nick Habeck
Caught by Jeff Schultz
Caught by Widowmaker .
Caught by Kaeden Zehms
Caught by Kaeden The Killer
Caught by Monica Soldner
Caught by Howie  Johnson
Caught by Travis Steve
Caught by John Furgason
Caught by Jake Kelly
Caught by Jason Trumpf
Caught by Jason Trumpf
CLOSE TO THE LAKE!

Frequently Asked Questions About Rock Lake, WI


How big is Rock Lake?
Rock Lake is approximately 1,365 sq acres (5.5 sq km) in size.

How deep is Rock Lake?
Rock Lake is approximately 60 feet (18.3 m) at its deepest point with an average depth of 16 feet (4.9 m).

What kind of fish can you catch in Rock Lake?
Although thery may be others but anglers can expect to find a variety of fish including Largemouth Bass, Northern Pike, Panfish, Smallmouth Bass and Walleye in Rock Lake.


Are there fishing guides or charters for Rock Lake?
Yes! There are fishing guides and charters for Rock Lake and/or the surrounding area. Might we suggest Dancing with Walleyes?

Are there places to stay in the Rock Lake area?
Are you craving a weekend escape from the hustle and bustle of city life? Or maybe you're an avid angler in search of the perfect fishing spot? Look no further! Rock Lake and its surrounding area offer an abundance of options to suit your needs. If you're in need of accommodation, check out our area map which highlights some of the best places to stay. And if you're looking for even more options, head on over to our Travel section. But why settle for a traditional hotel or resort when you can take your adventure to the next level by renting a RV? The open road awaits you!
More Lodging Options

Are there bait or tackle shops near Rock Lake?
Yes, there are some nearby bait or tackle shops in the vacinity of Rock Lake.
Business Card: Rock River Bait Box
Rock River Bait Box
Fort Atkinson, WI
(920) 691-2602
about 11 miles away

Are there topographical lake maps available Rock Lake?
We have an topograpical map for online viewing near the top of this page. Lake-Link Pro users can download an print a topograpical map of Rock Lake (.pdf format) along with 2,700 more lake maps. For more information on all the benefits of Lake-Link Pro click here.

Are there boat launches on Rock Lake?
We know of 4 public boat launches on Rock Lake. Please observe any specific lake regulations posted by the boat launch and please help keep the launch area free of litter.

Rock Lake area businesses:
Please check out these local businesses in the Rock Lake area:
Business Card: Rock River Bait Box
Rock River Bait Box
Fort Atkinson, WI
(920) 691-2602
about 11 miles away
Business Card: Dave's Turf & Marine
Dave's Turf & Marine
Watertown, WI
(920) 261-6802
about 14 miles away

Are there places to eat and drink near Rock Lake?
Yes, you can find numerous options in the area. Click the button below to see what's nearby.

What are the fishing regulations for Rock Lake?
Wisconsin Department of Natural Resources There are specific fishing regulations Rock Lake that you need to know. For complete fishing regulations visit the Wisconsin Department of Natural Resources. To report a violation call (800) 847-9367 or cell #367. Need a Wisconsin fishing license?

General Restrictions
  • 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.

What is the bottom composition of Rock Lake?
Rock Lake's bottom composition is comprised of muck (40%), gravel (30%) and sand (30%).

Explore the Rock Lake area in a RV
Are you looking for an adventurous vacation option that won't break the bank? Look no further than renting an RV! Contrary to popular belief, the process is much simpler than you might imagine. With just a few easy steps, you'll soon be experiencing the ultimate freedom and convenience of exploring the open road in your very own recreational vehicle. And the best part? RV travel can save you up to 60% compared to other types of vacations! With the money you'll save, you'll be able to travel even more and create unforgettable memories along the way. So why wait? Start planning your next adventure today with an RV rental. Learn more about renting a RV.

2022 Keystone RV Springdale
2022 Keystone RV Springdale
32 ftSleeps 9
Cambridge, Wisconsin, United States, WI
$130/nightMORE
Brand New! 2023 Coleman Class C - Fully Stocked Ready To Go! Sleeps 5
Brand New! 2023 Coleman Class C - Fully Stocked Ready To Go! Sleeps 5
24 ftSleeps 5
deerfield, WI
$229/nightMORE
2016 Crossroads RV Z-1 with outdoor kitchen
2016 Crossroads RV Z-1 with outdoor kitchen
35 ftSleeps 11
Deerfield, WI
$170/nightMORE
Happy Glamper v4.0 *Delivery Only*
Happy Glamper v4.0 *Delivery Only*
38 ftSleeps 11
DEERFIELD, WI
$149/nightMORE
More RV Options
What aquatic invasive species are found in Rock Lake?
There are some aquatic invasive species found in Rock Lake including Banded Mystery Snail, Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil, Yellow Iris and Zebra Mussel.

Join us in the fight to prevent the spread of invasive species These sneaky creatures can hitch a ride on boats, clinging onto propellers, anchor lines, and trailers. They can even survive in hidden places like bilge water and ballast tanks, or disguise themselves in dirt and sand that sticks to nets, buckets, anchors, and waders. But don't worry, we have the power to stop them in their tracks with just a few simple steps. So let's do our part and protect our waters from these unwanted invaders.


What is the average air temp for Rock Lake?
Looking forward to your next adventure at Rock Lake? Don't forget to plan ahead! Weather can be unpredictable, but we've got you covered. On average, air temperatures during this time of year range from a high around 57°F (14°C) to a low around 36°F (2°C). Of course, these are just historical averages, so be prepared for anything Mother Nature throws your way. For the most up-to-date weather information, be sure to check out our Weather Bar located at the top of this page.

Are there any state parks near Rock Lake?
Enjoy more of the outdoors with a visit to an area state park. There are 1 state park in the vacinity of Rock Lake.

For more Wisconsin State Park information see our State Park Guide.

Rock Lake Reviews
Below is the word on street about Rock Lake.
Have you been to Rock Lake? Why not share your personal reveiw with others?
Submit Review
trevor h.
4 star rating
Rock Lake is great for almost any type of fishing just not muskies. Every time i go out on Rock i come back home with a good amount of fish. A great spot is off of Sandy Beach for panfish. A great spot for bass is over in the pencil weeds on the west side, there is some good action over there. don't really know a good spot for pike but they seem to be almost every where.
Reviewed Feb 25, 2013
josh d.
4 star rating
Awsome spot to fish. Good on perch, gills, bass, and pike. not a week ago my friend caught a 18inch largemouth
Reviewed Jan 13, 2011
jason t.
5 star rating
After fishing this lake all my life I know where and when to go to certain areas. Seems like we always have a successful day of fishing. Good size fish and beautiful colors for all species!
Reviewed May 3, 2010

More Nearby Lakes To Explore
There's more lake's to explore around Rock Lake...
DISTANCE ACRES MAX DEPTH
Bean Lake 1.6 mi 33 6 ft
Mud Lake 2.3 mi 84 22 ft
Hoopers Millpond 2.5 mi 19 6 ft
Hope Lake 4.6 mi 108 24 ft
Goose Lake 5.4 mi 61 3 ft
Mud Lake 6.2 mi 33 8 ft
Lake Ripley 6.2 mi 420 44 ft
Red Cedar Lake 7.2 mi 344 6 ft
Maunesha Flowage 7.8 mi 79 6 ft
Rockdale Millpond (Camrock) 8.3 mi 72 5 ft
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