Lake Wilhelm

Mercer County, Pennsylvania

A long, narrow warmwater lake along I-79 in Maurice K. Goddard State Park. The park manages 1,440 acres, and the upper 240 acres lie in State Game Lands and are limited to electric motors.

Air temp in Hadley, PA Loading current temperature…

Red pins match the numbered boat launches below. Map data © OpenStreetMap contributors.

Current air temperature at Lake Wilhelm (National Weather Service) ↗

Surface area1,680 acres

Max depth—

Shoreline—

Boat motors20 hp limit (electric only above I-79)

Species

Fishery rating out of 5.

Largemouth Bass●●●●○

Shoreline wood and weed edges in the many coves.

Crappie●●●●○

Brush and timber in spring. Good through the ice.

Walleye●●●○○

Channel edges at dawn and dusk.

Muskellunge●●●○○

Weed lines and points in fall.

Bluegill●●●○○

Weed pockets in summer.

Boat launches

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

Goddard MarinaMarina
4-lane ramp, fuel, bait & tackle, 241 slips (May–Oct)Directions ↗
2Launch #1Public
State park launchDirections ↗
3Launch #2Public
State park launchDirections ↗
4Launch #3Public
State park launchDirections ↗
5Launch #4Public
State park launch with ADA fishing pierDirections ↗
State Game Lands launches (3)Public
Upper lake northwest of I-79. Electric motors onlyDirections ↗

Size & creel limits

Minimum size and daily limit for each species in Lake Wilhelm are published by the state. Look up the current size and creel limits for this lake directly: Pennsylvania Fish and Boat Commission ↗

Rules change, so confirm current limits with the Pennsylvania Fish and Boat Commission before you fish.

Bait & tackle nearby

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

Dunham's Sports13.7 mi
18977 Park Avenue Plaza, Meadville · closest to Launch #3Directions ↗
Dunham's Sports19.6 mi
6945 US Route 322, Cranberry · closest to Launch #1(814) 676-3253 Directions ↗
The Fly Stop20 mi
1087 Innis Street, Oil City · closest to Launch #1(582) 558-4016 Directions ↗

Search more bait shops near Lake Wilhelm ↗

Local tips

The upper lake above I-79 is electric-only and quiet. It's great for kayaks.
Ice fishing is productive for larger crappie and walleye.
ADA-accessible fishing piers are at Rounded Point near the marina and at Launch #4.

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.

More Pennsylvania lakes

Lake Arthur Youghiogheny River Lake Little Blue Run Lake Foster Joseph Sayers Lake Glendale Lake Lake Nockamixon Lake Marburg East Branch Clarion River Lake All Pennsylvania lakes →

Always wear a life jacket and check your state's current regulations before you fish.