Iowa Highway 4

Iowa Highway 4
Iowa Highway 4
	Iowa 4 highlighted in red
Route information
	Maintained by Iowa DOT
Length	146.343 mi (235.516 km)
Existed	January 1, 1969–present
History	1920–1968: Iowa 17
Major junctions
South end	Iowa 44 / CR P28 at Panora
	US 30 at Jefferson; US 20 near Rockwell City; US 18 at Emmetsburg;
North end	MN 4 north of Estherville
Location
Country	United States
State	Iowa
Counties	Guthrie; Greene; Calhoun; Pocahontas; Palo Alto; Emmet;
Highway system
	Iowa Primary Highway System; Interstate; US; State; Secondary; Scenic;

Iowa Highway 4 (Iowa 4) is a state highway which runs from north to south across the state of Iowa. It is 146 miles (235 km) long, beginning at an intersection with Iowa Highway 44 in Panora and ending at the Minnesota state line north of Estherville. It continues north as Minnesota State Highway 4. The route was created on January 1, 1969, when several route designations were changed to match other states' route numbers. Before 1969, Iowa 4 was known as Iowa 17.

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