Demetrius is a distinctive boys' name in United States, ranking #596 in 2013 with 425 recorded births. The name reached its all-time peak in 1996 with 759 births ranking #338. Since 1996, the popularity has decreased by 44.0%. In 2013, approximately 1 in every 4,450 boys born was named Demetrius. FALLING Recent data shows the name is currently falling.