Delia is a distinctive girls' name in United States, ranking #1127 in 2008 with 229 recorded births. The name reached its all-time peak in 2007 with 272 births ranking #986. Since 1996, the popularity has increased by 22.5%. In 2008, approximately 1 in every 8,256 girls born was named Delia. FALLING Recent data shows the name is currently falling.