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Natural spring-fed lake

Geneva Lake

Walworth County, Wisconsin

One of Wisconsin's deepest inland lakes, ringed by Lake Geneva, Williams Bay, and Fontana. The water is very clear and cold at depth, which supports smallmouth bass, walleye, and a stocked trout fishery.

N2 mi
Air temp in Williams Bay, WI Loading current temperature…
Map data © OpenStreetMap contributors.
Surface area5,401 acres
Max depth135 ft
Shoreline21 mi
Boat motorsCheck local ordinances

Species

Fishery rating out of 5.

Smallmouth Bass●●●●●

Abundant. Rocky points and drop-offs. Tubes, drop-shots, and jerkbaits in the clear water.

Lake Trout●●●○○

Stocked. Deep, cold water in summer. Downriggers or vertical jigging.

Walleye●●●○○

Night bite along weedlines and deep breaks.

Largemouth Bass●●●○○

Shallow bays and piers.

Northern Pike●●●○○

Weed edges in the bays. Tip-ups through the ice.

When they bite

Month-by-month activity for each target species.

JFMAMJJASOND
Smallmouth Bass
Lake Trout
Walleye
Northern Pike
SlowFairGoodHot

Boat launches

4 launch sites. Fees and hours change, so confirm before you go.

  • City of Lake Geneva LaunchFee
    328 Wrigley Dr. Fee. Open 24 hoursDirections ↗
  • Williams Bay LaunchFee
    89 E. Geneva St, Williams Bay. Fee. Open 24 hoursDirections ↗
  • Fontana LaunchFee
    Lake Ave, Fontana. Fee. Open 24 hoursDirections ↗
  • Town of Linn LaunchesFee
    Two launches on the south shore, off Linn Rd and Hillside Rd. FeeDirections ↗

Size & creel limits

Special rules for this lake, confirmed from official state regulations. Minimum size and daily limit.

SpeciesMin sizeDaily limit
Walleye
Open May 2, 2026 to Mar 7, 2027
18 in3 / day
Largemouth/Smallmouth Bass
Open May 2, 2026 to Mar 7, 2027
14 in5 / day
Northern Pike
Open May 2, 2026 to Mar 7, 2027
See Wisconsin rules book ↗5 / day
Muskellunge
May 2 to Dec 31, 2026; open water only
50 in1 / day
Panfish
Open all year
See Wisconsin rules book ↗25 / day
Catfish
Open all year
See Wisconsin rules book ↗10 / day
Trout
See specific trout regulations
VariesVaries

Other species in this lake: look up the limits at Wisconsin DNR ↗

Verified October 2026. Rules change, so confirm current limits with the Wisconsin DNR before you fish.

Bait & tackle nearby

Closest shops to the lake and its boat launches. Call ahead for live bait and hours.

Search more bait shops near Geneva Lake ↗

Local tips

Angler reports

Water temp, what's biting, and anything else other anglers should know about Geneva Lake.

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View on interactive map

Zoom and pan on a street, satellite or terrain map. Red pins are boat launches; blue pins are bait shops nearby.