Demario is a distinctive boys' name in United States, ranking #1209 in 2005 with 131 recorded births. The name reached its all-time peak in 2008 with 133 births ranking #1305. Since 1996, the popularity has increased by 14.9%. In 2005, approximately 1 in every 15,245 boys born was named Demario. FALLING Recent data shows the name is currently falling.