Kempton is a distinctive boys' name in United States, ranking #9258 in 2010 with 8 recorded births. This places Kempton in the bottom 35% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2013 with 15 births ranking #5809. In 2010, approximately 1 in every 239,802 boys born was named Kempton. STABLE Recent data shows the name is currently stable.