Alexa is a highly popular girls' name in United States, ranking #50 in 2010 with 5,043 recorded births. The name reached its all-time peak in 2006 with 6,117 births ranking #39. Since 1996, the popularity has increased by 54.7%. In 2010, approximately 1 in every 352 girls born was named Alexa. FALLING Recent data shows the name is currently falling.