Rock Lake
Rock Lake is a 1,365-acre lake in Jefferson County, Wisconsin, up to 60 feet deep, with 283 waterfront parcels on its shore. Fish include panfish, largemouth bass, smallmouth bass, northern pike and walleye. It has 4 public boat landings, a public beach and public land or a park on the shore.
- Size: 1,365 acres
- Deepest point: 60 ft
- Average depth: 16 ft
- Bottom: 40% muck, 30% sand, 30% gravel
- Fish: Panfish, Largemouth bass, Smallmouth bass, Northern pike, Walleye
- Public access: 4 public boat landings, a public beach and public land or a park on the shore
- Boating: Full recreation: over 50 acres, so open to water-skiing and boating at speed under state law
- Local boating ordinances on record: water-skiing rules, slow-no-wake areas and slow-no-wake hours
- Drive time without traffic: Madison 35 min, Waukesha 45 min, Milwaukee 55 min, Rockford 1 hr 20 min, Appleton 1 hr 50 min, Chicago 2 hr 20 min, Green Bay 2 hr 20 min, Eau Claire 2 hr 55 min, Twin Cities 4 hr 5 min
- Invasive species on record: Banded Mystery Snail, Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Hybrid Eurasian / Northern Water-Milfoil, Rusty Crayfish, Spiny Naiad, Starry Stonewort, Yellow Iris, Zebra Mussel
- Waterfront parcels: 283 waterfront parcels
Questions about Rock Lake
How many waterfront properties are on Rock Lake?
283 waterfront parcels front Rock Lake in Jefferson County. That counts parcels on the water from county parcel maps, not homes for sale.
How big is Rock Lake?
Rock Lake covers 1,365 acres in Jefferson County, Wisconsin.
How deep is Rock Lake?
Rock Lake is 60 feet deep at its deepest point, and 16 feet deep on average.
What fish are in Rock Lake?
The Wisconsin DNR lists panfish, largemouth bass, smallmouth bass, northern pike and walleye in Rock Lake.
Is there public access to Rock Lake?
Yes. Rock Lake has 4 public boat landings, a public beach and public land or a park on the shore.
Can you water-ski or run a boat at speed on Rock Lake?
Rock Lake is over 50 acres, so Wisconsin's slow-no-wake rule for small lakes does not apply and boats may run at speed, staying slow within 100 feet of shore, docks and swimmers. Local ordinances on record include water-skiing rules, slow-no-wake areas and slow-no-wake hours; the ordinance itself says which part of the lake or the day each covers.
How long is the drive to Rock Lake?
By car, Rock Lake is about 35 min from Madison, 45 min from Waukesha, 55 min from Milwaukee, 2 hr 20 min from Chicago and 4 hr 5 min from the Twin Cities. Those are typical times without traffic, to the nearest road at the lake.
What is the bottom of Rock Lake like?
The lake bottom is 40% muck, 30% sand, 30% gravel, by the Wisconsin DNR's record.