Indiana State Route 15 is the main north-south highway in Central Kosciusko County. It runs from the Elkhart County Line, near Milford, to the Wabash County Line, near Silver Lake. IN St Rt 15 passes through the following towns in Kosciusko County. Milford
Silver Lake IN St Rt 15 is not multi-plexed in Kosciusko County. IN St Rt 15 intersects the following highways in Kosciusko County. U.S. Rt. 30, at Warsaw.