Delia is a distinctive girls' name in United States, ranking #1005 in 1996 with 187 recorded births. This places Delia in the top 6% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2007 with 272 births ranking #986. In 1996, approximately 1 in every 9,374 girls born was named Delia. FALLING Recent data shows the name is currently falling.