In 2025, 452 US girls were named Rhea, making it the 639th most common girls’ name of the year, down 25 places from #614 in 2024. That is 35 fewer than the 487 girls named Rhea in 2024. Its best rank for girls was #363, reached in 1893. The most girls given the name in a single year was 577, in 2023. For comparison, it was #996 in 2015 and #831 in 1950.
Social Security card records list Rhea in 144 years of the 146 from 1880 to 2025, starting in 1882 with 7 babies. In all, 20,145 US babies have been given the name, 98% of them girls and 2.0% boys. Its busiest decade was the 2020s, with 2,965 babies named Rhea.
Over the 10 years from 2016 to 2025, 4,343 US girls were named Rhea; the busiest of those years was 2023, with 577. In 2025 that was about 1 in 3,556 of the girls in SSA’s list for the year.
Among the states, Rhea ranked highest in Oregon in 2025, at #318 for girls there. It was not in the top 100 of any state. Rarer spellings such as Rheya, Rhya and Rhia are summarised on this page.