Sanjuan is a distinctive boys' name in United States, ranking #13010 in 2005 with 5 recorded births. This places Sanjuan in the bottom 3% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1996 with 6 births ranking #8828. Since 1996, the popularity has decreased by 16.7%. In 2005, approximately 1 in every 399,429 boys born was named Sanjuan. FALLING Recent data shows the name is currently falling.