^Looking northward from the intersection with Iowa 56 in the hilly community of Elkader, July 2025.
Iowa Route 13 is a highway running from the east side of the Cedar Rapids area north to a junction west of Marquette and Prairie du Chien, Wisconsin. It's a north-south route in eastern and northeastern Iowa. The southern end is at a trumpet interchange with US Route 30; this trumpet interchange is where US Route 151 splits northward from the western leg of US Route 30. That is to say, the southern start of Iowa Route 13 is concurrent with US Route 151. That concurrency flanks the eastern side of Cedar Rapids, then in the satellite town of Marion, US Route 151 turns northeasterly to head independently away from the area. Iowa Route 13 continues north until its northern terminus at US Route 52 west of Marquette, Iowa. That northern endpoint is less than a mile south of US Route 18.
My photo for Iowa Route 13 comes from its junction with Iowa Route 100, along the southernmost portion that's concurrent with US Route 151. The aperture, and the traffic reading this sign, is oriented toward the south. The signage communicates to southbound traffic that Iowa Route 100 is accessed by making a right turn to the west. I took this photo on July 1, 2017, as part of the eastern Iowa trip.
Here are some additional photos from Iowa Route 13:
Here are some additional photos from Iowa Route 13:
Looking north from Iowa 13's southern point of beginning at US Route 30, just southeast of Cedar Rapids. Note that Iowa 13 is duplexed with US Route 151 along its southernmost segment.
Looking north were Iowa 13 (and US Route 151) meets the eastern end of Iowa 100, in the Marion area. The featured photo for Iowa 13 is on the other side of the intersection from the signage seen here.
Just north of Iowa 100, Iowa 13 splits from US Route 151. To the southbound travelers on Iowa 13 looking at these signs, though, US Route 151 is joining up from the east.
As a bonus, look at this sign found in Coggon. Coggon is trying to show locals the way to Iowa 13, but they chose the wrong type of route shield to try and do that.