Althea is a distinctive girls' name in United States, ranking #2399 in 1998 with 58 recorded births. The name reached its all-time peak in 2022 with 175 births ranking #1342. Since 1996, the popularity has increased by 23.4%. In 1998, approximately 1 in every 30,464 girls born was named Althea. STABLE Recent data shows the name is currently stable.