In 1960 , it had a population of 536 and by 1970 Its population grew to 1,960 .
Leon Valley incorporated in 1954 under the leadership of its founding mayor , Raymond Rimkus .
In 1960 , Leon Valley had a population of 536 and by 1970 Leon Valley 's population grew to 1,960 .
Leon Valley incorporated in 1954 under the leadership of its founding mayor , Raymond Rimkus .