List of Interstate Highways in Wisconsin

Interstate Highways of the Wisconsin State Trunk Highway System
	Highway marker for Interstate 94 and Interstate 894
System information
Formed:	August 14, 1957
Highway names
Interstates:	Interstate nn (I-nn)
System links
	Wisconsin State Trunk Highway System; Interstate; U.S.; State; Byways; Rustic;

The Interstate Highways in Wisconsin comprise five current primary Interstate Highways and three auxiliary Interstates.

Primary Interstate Highways

Number	Length (mi)^[2]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I0039 !I-39	182.14	293.13	I-39/I-90 near Beloit	US 51/WIS 29 in Rothschild	—	—
I0041 !I-41	175.43	282.33	I-94/I-41/US 41 near Russell, IL	I-43 and US 41/US 141 in Howard	2015^[3]	current	Overlaps US 41 in the state
I0043 !I-43	191.55	308.27	I-39/I-90 and WIS 81 in Beloit	US 41/US 141 in Howard	—	—
I0090 !I-90	187.13	301.16	I-90 in La Crosse	I-39/I-90 in Beloit	—	—
I0094 !I-94	348.23	560.42	I-94 in Hudson	I-94/US 41 at Russell, IL	—	—

Number	Length (mi)^[2]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I0535 !I-535	1.21	1.95	US 53 and WIS 35 in Superior	I-535/US 53 at Duluth, MN	—	—	Follows the John A. Blatnik Bridge and continues another 1.57 miles (2.53 km) to I-35 in Duluth
I0794 !I-794	3.50	5.63	I-43/I-94/US 41 in Milwaukee	WIS 794 in Milwaukee	—	—	Called the Lake Freeway and the East–West Freeway
I0894 !I-894	9.92	15.96	I-94 and US 45 in West Allis	I-43/I-94 in Milwaukee	—	—	Completely concurrent with I-41, part concurrent with I-43 called the Airport Freeway.