Indiana State Route 334 is a short east-west highway in Marion County. This gives the Village of Zionsville access to Interstate 65. IN St Rt 334 passes through the following town in Boone County. Zionsville IN St Rt 334 is not multi-plexed in Boone County. IN St Rt 334 intersects the following highways in Boone County. U.S. Rt. 421, near Zionsville. Interstate 65, near Royalton. U.S. Rt. 52, near Royalton.
