Lillia is a distinctive girls' name in United States, ranking #3396 in 1998 with 36 recorded births. The name reached its all-time peak in 2013 with 73 births ranking #2473. Since 1996, the popularity has increased by 50.0%. In 1998, approximately 1 in every 49,080 girls born was named Lillia. STABLE Recent data shows the name is currently stable.