Millenia is a distinctive girls' name in United States, ranking #3320 in 2000 with 41 recorded births. The name reached its all-time peak in 2000 with 41 births ranking #3320. Since 1996, the popularity has increased by 720.0%. In 2000, approximately 1 in every 44,292 girls born was named Millenia. FALLING Recent data shows the name is currently falling.