Demarcus is a distinctive boys' name in United States, ranking #820 in 2010 with 261 recorded births. The name reached its all-time peak in 1996 with 404 births ranking #510. Since 1996, the popularity has decreased by 35.4%. In 2010, approximately 1 in every 7,350 boys born was named Demarcus. FALLING Recent data shows the name is currently falling.