Delia is a distinctive girls' name in United States, ranking #1074 in 2006 with 237 recorded births. The name reached its all-time peak in 2007 with 272 births ranking #986. Since 1996, the popularity has increased by 26.7%. In 2006, approximately 1 in every 8,021 girls born was named Delia. FALLING Recent data shows the name is currently falling.