Delia is a distinctive girls' name in United States, ranking #970 in 2004 with 247 recorded births. This places Delia in the top 5% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2007 with 272 births ranking #986. Since 1996, the popularity has increased by 32.1%. In 2004, approximately 1 in every 7,434 girls born was named Delia. FALLING Recent data shows the name is currently falling.