Koston is a distinctive boys' name in United States, ranking #5103 in 2011 with 18 recorded births. This places Koston in the top 36% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2010 with 25 births ranking #4060. In 2011, approximately 1 in every 105,499 boys born was named Koston. FALLING Recent data shows the name is currently falling.