Iowa Highway 15
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| Maintained by Iowa DOT | ||||
| Length: | 63.578 mi (102.319 km) | |||
| Existed: | 1969 – present | |||
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| South end: |
  Iowa 3 / CR N65 near Pocahontas
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| North end: |
 MN 15 north of Armstrong
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Iowa Highway 15 (Iowa 15) is a north–south state highway in northern Iowa. It is 63 1⁄2 miles (102.2 km) long. The southern end of Iowa 15 is 7 miles (11 km) east of Pocahontas at an intersection with Iowa Highway 3. The northern end is at the Minnesota border, where the highway continues north as Minnesota State Highway 15 near Fairmont, Minnesota. Prior to 1969, the route was known as Iowa Highway 44; it was renumbered to match the highway in Minnesota.
Iowa Highway 15 begins 7 miles (11 km) east of Pocahontas at Iowa Highway 3. It goes north for 5 miles (8.0 km) to Rolfe, then begins to go northeast in a stairstep manner for 9 miles (14 km) until crossing the West Fork of the Des Moines River and into Humboldt County 3 miles (4.8 km) west of Ottosen. It then turns north onto the Palo Alto County/Kossuth County border for 4 1⁄2 miles (7.2 km) and passes through West Bend. It continues north for 8 1⁄2 miles (13.7 km) to the Whittemore area, where there is a one-mile (1.6 km) overlap with U.S. Route 18, where it fully enters Kossuth County.
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