| State Trunk Highway 89 | ||||
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| Route information | ||||
| Maintained by WisDOT | ||||
| Length: | 29.75 mi (47.88 km) | |||
| Major junctions | ||||
| South end: |
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| North end: |
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| Location | ||||
| Counties: | Walworth, Rock, Jefferson, Dodge, Dane, Columbia | |||
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State Trunk Highway 89 (often called Highway 89, STH 89 or WIS 89) is a state highway in the U.S. state of Wisconsin. It runs north–south in southeast Wisconsin from near Delavan to Columbus.