WMHI: Driving Directions

Winnebago Mental Health Institute is located on the western shore of Lake Winnebago, approximately 3 miles north of Oshkosh.

To ensure proper routing by your GPS system, use these addresses when mapping your route.

Administration Building: 4100 Treffert Drive, Winnebago, WI
Admissions Unit: 4030 Treffert Drive, Winnebago, WI
Deliveries: 1300 South Drive, Winnebago, WI

Directions from Interstate 41

  • Take Exit 124 (Hwy 76/Jackson Street).
  • Drive South on Highway 76 to County Road Y.
  • Turn left on County Road Y and follow it east over the railroad track to the stop sign.
  • At stop sign, turn right on County Road A and head south to Butler Avenue.
  • Turn left on Butler Avenue and follow east to the WMHI grounds.


Last Revised: August 31, 2020