Demarkus is a distinctive boys' name in United States, ranking #6224 in 2004 with 12 recorded births. The name reached its all-time peak in 2009 with 37 births ranking #3121. Since 1996, the popularity has decreased by 63.6%. In 2004, approximately 1 in every 165,400 boys born was named Demarkus. RISING Recent data shows the name is currently rising.