Oklahoma State Route 11 runs east-west across Kay County. This is Kay Counties northern most main east-west surface highway. OK St Rt 11 is a connection between Ponca City and Blackwell, via U.S. Rt. 77. OK St Rt 11 passes through the following town in Kay County. Blackwell OK St Rt 11 is multi-plexed in Kay County. U.S. Rt. 77, from near Poncca City to near Kildare. OK St Rt 11 intersects the following highways in Kay County. U.S. Rt. 77, near Ponca City. U.S. Rt. 77, near Kildare. U.S. Rt. 177, at Blackwell. Interstate 35, near Blackwell.