Chelsea is a moderately popular girls' name in United States, ranking #209 in 2007 with 1,644 recorded births. The name reached its all-time peak in 1996 with 5,864 births ranking #55. Since 1996, the popularity has decreased by 72.0%. In 2007, approximately 1 in every 1,169 girls born was named Chelsea. FALLING Recent data shows the name is currently falling.