Demetrus is a distinctive boys' name in United States, ranking #6657 in 2002 with 10 recorded births. This places Demetrus in the bottom 47% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1996 with 20 births ranking #3435. Since 1996, the popularity has decreased by 50.0%. In 2002, approximately 1 in every 194,147 boys born was named Demetrus. FALLING Recent data shows the name is currently falling.