WI

Interstates in Wisconsin

5 Interstate routes run through Wisconsin: 5 primary.

Primary / North-south I-39

Bloomington-Normal to Wausau

Active Primary / North-south I-41

Milwaukee region to Green Bay

Active Primary / North-south I-43

Beloit to Green Bay

Active Primary / East-west I-90

Seattle to Boston

Active Primary / East-west I-94

Billings to Port Huron