Katy is often further defined as either "Old Towne Katy" or "Greater Katy". Old Towne Katy refers to the proper of Katy, which was incorporated in 1945. Its boundaries, as defined by the Katy Independent School Divisions zoning, runs just south of Kingsland Blvd, stretching across Interstate 10 to Morton Road. Katy Fort Bend Road and Cane Island Creek act as the east and west boundaries, The Greater Katy area includes the city of Katy plus large sections of unincorporated land surrounding the city corresponding to the boundaries of the Katy Independent School District.