Althea is a distinctive girls' name in United States, ranking #2342 in 2010 with 81 recorded births. The name reached its all-time peak in 2022 with 175 births ranking #1342. Since 1996, the popularity has increased by 72.3%. In 2010, approximately 1 in every 21,942 girls born was named Althea. STABLE Recent data shows the name is currently stable.