Jefferson is a distinctive boys' name in United States, ranking #724 in 1998 with 227 recorded births. This places Jefferson in the top 6% of ranked US boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2009 with 444 births ranking #589. In 1998, approximately 1 in every 8,420 boys born was named Jefferson. FALLING Recent data shows the name is currently falling.