Iowa Highway 10

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Iowa Highway 10 marker

Iowa Highway 10
Route information
Maintained by Iowa DOT
Length: 104.512 mi[1] (168.196 km)
Major junctions
West end: SD 46 near Hawarden
East end: Iowa 4 in Havelock
Highway system
Iowa 9 Iowa 11

Iowa Highway 10 (Iowa 10) is a state highway that runs 104 12 miles (168.2 km) across the state of Iowa. It begins where South Dakota Highway 46 crosses the Big Sioux River into Iowa north of Hawarden. It ends east of Havelock at an intersection with Iowa Highway 4.

Route description[edit]

Iowa Highway 10 begins by going south towards Hawarden. At Hawarden, it intersects Iowa Highway 12, then turns east. Before entering Orange City, Iowa 10 intersects U.S. Highway 75. After Orange City, it enters Alton, meeting Iowa Highway 60. It continues east through Granville and meets Iowa Highway 143 before entering Paullina. After Paullina, Iowa 10 then runs concurrent for 5 miles (8.0 km) with U.S. Highway 59. They separate and Iowa 10 then enters Sutherland. Iowa 10 turns slightly southeast to go through Peterson, then continues east until intersecting U.S. Highway 71. Iowa 10 then goes south with U.S. 71, passing through Sioux Rapids before turning east again. Iowa 10 then passes through Marathon, Laurens and Havelock before ending at Iowa Highway 4 shortly after Havelock.


Iowa Highway 10 was designated as a state highway in 1920. It crossed Iowa from west to east, going from Hawarden to McGregor. It was shortened to Strawberry Point in 1926, then extended to Luxemburg in 1930 and Dubuque in 1939. In 1945, the highway was shortened to Pocahontas and in 1969, was shortened to its current eastern terminus.

Major intersections[edit]

County Location mi km Destinations Notes
Big Sioux River 0.000 0.000 SD 46 west – Beresford Continuation into South Dakota
South DakotaIowa state line
Sioux Hawarden 3.787 6.095 Iowa 12 south (Avenue E) – Akron, Alcester, S.D.
ShermanWest Branch
township line
19.620 31.575 US 75 – Sioux Center, Le Mars
Alton 28.650 46.108 Iowa 450 to Iowa 60 – Sioux City, Worthington, Minn.
O'Brien Caledonia Township 39.515 63.593 Iowa 143 south – Marcus
township line
48.493 78.042 US 59 north – Primghar Western end of US 59 overlap
Liberty Township 53.368 85.887 US 59 south – Cherokee Eastern end of US 59 overlap
Clay Douglas Township 74.925 120.580 US 71 north – Spencer Western end of US 71 overlap
Buena Vista BarnesLee
township line
80.113 128.929 US 71 south / CR C16 west – Storm Lake Eastern end of US 71 overlap
Pocahontas Cummins Township 104.512 168.196 Iowa 4 – Pocahontas, Mallard
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Related route[edit]

Iowa Highway 450
Location: Alton
Length: 0.268 mi[1] (0.431 km)

In Alton, Iowa 450 is a 14-mile-long (0.40 km) route which provides a direct connection between Iowa 10 and Iowa 60. It was designated when Iowa 60 moved onto a four-lane bypass of Alton. Prior to the construction of the bypass, the two routes which Iowa 450 connect intersected in Alton.


Route map: Bing / Google

KML is from Wikidata