Demarkus is a distinctive boys' name in United States, ranking #3739 in 2010 with 28 recorded births. The name reached its all-time peak in 2009 with 37 births ranking #3121. Since 1996, the popularity has decreased by 15.2%. In 2010, approximately 1 in every 68,515 boys born was named Demarkus. RISING Recent data shows the name is currently rising.