Demarco is a distinctive boys' name in United States, ranking #787 in 1998 with 194 recorded births. The name reached its all-time peak in 1998 with 194 births ranking #787. Since 1996, the popularity has increased by 20.5%. In 1998, approximately 1 in every 9,852 boys born was named Demarco. FALLING Recent data shows the name is currently falling.