Rocio is a distinctive girls' name in United States, ranking #805 in 2002 with 291 recorded births. This places Rocio in the top 4% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 1998 with 343 births ranking #673. Since 1996, the popularity has decreased by 11.0%. In 2002, approximately 1 in every 6,175 girls born was named Rocio. FALLING Recent data shows the name is currently falling.