Delia is a distinctive girls' name in United States, ranking #1116 in 2009 with 227 recorded births. The name reached its all-time peak in 2007 with 272 births ranking #986. Since 1996, the popularity has increased by 21.4%. In 2009, approximately 1 in every 8,092 girls born was named Delia. FALLING Recent data shows the name is currently falling.