Demario is a distinctive boys' name in United States, ranking #1397 in 1999 with 84 recorded births. The name reached its all-time peak in 2008 with 133 births ranking #1305. Since 1996, the popularity has decreased by 26.3%. In 1999, approximately 1 in every 22,858 boys born was named Demario. FALLING Recent data shows the name is currently falling.