Delia is a distinctive girls' name in United States, ranking #876 in 1997 with 232 recorded births. The name reached its all-time peak in 2007 with 272 births ranking #986. Since 1996, the popularity has increased by 24.1%. In 1997, approximately 1 in every 7,503 girls born was named Delia. FALLING Recent data shows the name is currently falling.