How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Rhea
Rhea has stayed fairly steady in American naming for generations. All-time it's been given to 30,533 U.S. babies, the 813th most common name by sound today, peaking at 895 in 2023, with 667 in 2025.
By sound, Rhea also includes the spellings Riya, Ria. Spellings sometimes heard the same way: Reya.
Rising