Demarkus is a distinctive boys' name in United States, ranking #5225 in 2013 with 17 recorded births. The name reached its all-time peak in 2009 with 37 births ranking #3121. Since 1996, the popularity has decreased by 48.5%. In 2013, approximately 1 in every 111,250 boys born was named Demarkus. RISING Recent data shows the name is currently rising.