Althea is a distinctive girls' name in United States, ranking #2511 in 2009 with 75 recorded births. The name reached its all-time peak in 2022 with 175 births ranking #1342. Since 1996, the popularity has increased by 59.6%. In 2009, approximately 1 in every 24,492 girls born was named Althea. STABLE Recent data shows the name is currently stable.