SR 931 begins at an interchange with US 31 south of Kokomo, passing through farmland and residential properties. After crossing SR 26, the roadpasses through a commercial section of Kokomo. It then returns to US 31 north of Kokomo just after the intersection with US 35.
In 2013 US 31 was rerouted onto a new bypass around Kokomo and the designation along the old bypass, built as a relocated US 31 in 1952, became SR 931.