Demarkus is a distinctive boys' name in United States, ranking #3815 in 2002 with 22 recorded births. The name reached its all-time peak in 2009 with 37 births ranking #3121. Since 1996, the popularity has decreased by 33.3%. In 2002, approximately 1 in every 88,249 boys born was named Demarkus. RISING Recent data shows the name is currently rising.