Demarkus is a distinctive boys' name in United States, ranking #4655 in 2003 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 2003, approximately 1 in every 116,192 boys born was named Demarkus. RISING Recent data shows the name is currently rising.