Sia is a distinctive girls' name in United States, ranking #1149 in 2022 with 212 recorded births. This places Sia 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 2025 with 215 births ranking #1107. Since 1996, the popularity has increased by 1,666.7%. In 2022, approximately 1 in every 7,730 girls born was named Sia. RISING Recent data shows the name is currently rising.