Kendall County Highway 17 is an east-west highway in West-Central Kendall County. It runs from Illinois State Route 47, south of Yorkville, to Illinois State Rotu 71, south of Millbrook. KCH 17 does not pass through any towns in Kendall County. KCH 17 is not multi-plexed in Kendall County. KCH 17 intersects the following highways in Kendall County. Illinois State Route 47, near Yorkville. Illinois State Route 71, near Millbrook.