State Trunk Highway 80
WIS 80 highlighted in red
Route information
Maintained by WisDOT
Length	175.73 mi (282.81 km)
Major junctions
South end	IL 84 in Hazel Green
Major intersections	US 151 in Platteville US 18 in Montfort US 18 in Cobb US 14 in Richland Center US 12 / WIS 16 in New Lisbon I-90 / I-94 in New Lisbon
North end	US 10 in Marshfield
Location
Country	United States
State	Wisconsin
Counties	Grant, Iowa, Richland, Vernon, Juneau, Wood
Highway system
Wisconsin State Trunk Highway System Interstate US State Scenic Rustic
← WIS 79 → WIS 81

State Trunk Highway 80 (abbreviated as Highway 80, STH-80 or WIS 80) is a state highway in the U.S. state of Wisconsin. It runs north–south in southwest and west central Wisconsin from just south of Marshfield, near the geographic center of the state to the Illinois border near Hazel Green.

Route description

WIS 80 begins at a roundabout with U.S. Highway 10 (US 10) just south of Marshfield, running south through the farmlands of Wood County before combining with WIS 73 and heading east for 2.5 miles (4.0 km) to Pittsville, where it turns south through town and comes within a few hundred yards of the geographic center of the state. South from Pittsville, the terrain is flat as WIS 80 passes along the Necedah National Wildlife Refuge, through the center of Necedah, and into New Lisbon just past the junction with Interstate 90/Interstate 94 (I-90/I-94). South of New Lisbon, it enters the Driftless Area with many rolling hills and curves. WIS 80 meets up with WIS 82 heading into Elroy, southern trailhead of the Elroy-Sparta Trail, and then to Union Center where WIS 33 also runs concurrently into Hillsboro. At Hillsboro, WIS 33/WIS 82 heads west and WIS 80 continues south into Richland County, through Hub City and into Richland Center.^[1]

WIS 80 crosses the Wisconsin River into Muscoda,^[1] which bills itself as the "Morel mushroom capital of Wisconsin".^{[citation needed]} WIS 133 joins WIS 80 east five miles (8.0 km) before WIS 80 heads south again to Highland and Cobb, where the land continues to be hilly but becomes less forested and more rolling farmland. At Cobb, WIS 80 follows US 18 west for five miles (8.0 km) before heading south along the Iowa–Grant county line past Livingston and into Platteville, where it meets WIS 81 in town and US 151 south of town at the freeway bypass. South of Platteville, WIS 80 occasionally aligns itself along the Grant–Lafayette county line as it heads through Cuba City and Hazel Green, where WIS 11 joins for a few miles. South of Hazel Green, WIS 80 ends at the Illinois state line, where it meets Illinois Route 84 (IL 84) one-half mile (0.80 km) west of the state's "Point of Beginning",^[1] the location from which most public land surveys in Wisconsin originated.^{[citation needed]}

Major intersections

County	Location	mi	km	Destinations	Notes
Grant	Town of Hazel Green	0.00	0.00	IL 84 south – Galena	Continuation into Illinois
	Hazel Green	1.8	2.9	WIS 11 west – Dubuque	Southern end of WIS 11 concurrency
	Town of Hazel Green	4.7	7.6	WIS 11 east – Benton	Northern end of WIS 11 concurrency
	Town of Smelser	11.3	18.2	WIS 81 east – Darlington	Southern end of WIS 81 concurrency
	Platteville	14.9	24.0	US 151 – Dubuque, Madison
		16.3	26.2	Bus. US 151 (Dubuque Road)
		16.6	26.7	WIS 81 west – Lancaster	Northern end of WIS 81 concurrency
Grant–Iowa county line	Montfort	34.5	55.5	US 18 west – Fennimore	Western end of US 18 concurrency
Iowa	Cobb	39.5	63.6	US 18 east – Dodgeville	Eastern end of US 18 concurrency
	Town of Pulaski	57.0	91.7	WIS 133 north – Avoca, Lone Rock	Eastern end of WIS 133 concurrency
Grant	Muscoda	61.8	99.5	WIS 133 south – Blue River, Boscobel	Western end of WIS 133 concurrency
Richland	Town of Eagle	63.1	101.5	WIS 60 – Gotham, Wauzeka
		65.1	104.8	WIS 193 south
	Richland Center	73.7	118.6	US 14 – La Crosse, Madison
	Town of Rockbridge	78.1	125.7	WIS 56 west – Viola
Vernon	Hillsboro	98.1	157.9	WIS 33 west / WIS 82 west – Ontario, La Farge	Southern end of WIS 33/WIS 82 concurrency
Juneau	Union Center	103.0	165.8	WIS 33 east – Wonewoc	Northern end of WIS 33 concurrency
	Elroy	107.3	172.7	WIS 71 west – Kendall
		108.6	174.8	WIS 82 east – Mauston	Northern end of WIS 82 concurrency
	New Lisbon	119.0	191.5	US 12 east / WIS 16 east – Mauston	Southern end of US 12/WIS 16 concurrency
		119.5	192.3	US 12 west / WIS 16 west – Camp Douglas	Northern end of US 12/WIS 16 concurrency
		120.6	194.1	I-90 / I-94 – Tomah, Madison
	Town of Clearfield	127.7	205.5	WIS 58 south – Mauston
	Necedah	131.7	212.0	WIS 21 – Tomah, Coloma
Wood	Town of Remington	151.1	243.2	WIS 173 south – Mather	Southern end of WIS 173 concurrency
	Babcock	152.5	245.4	WIS 173 north – Nekoosa	Northern end of WIS 173 concurrency
	Town of Dexter	156.6	252.0	WIS 54 east – Port Edwards	Southern end of WIS 54 concurrency
	Dexterville	157.4	253.3	WIS 54 west – Black River Falls	Northern end of WIS 54 concurrency
	Pittsville	163.1	262.5	WIS 73 east – Wisconsin Rapids	Eastern end of WIS 73 concurrency
	Town of Wood	165.5	266.3	WIS 73 west – Neillsville	Western end of WIS 73 concurrency
	Town of Cameron	175.73	282.81	US 10 – Marshfield, Neillsville, Stevens Point	Roundabout
1.000 mi = 1.609 km; 1.000 km = 0.621 mi