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).
Reagan
Reagan is now well below its former popularity. All-time it's been given to 99,072 U.S. babies, the 313th most common name by sound today, peaking at 4,453 in 2016, with 1,936 in 2025.
By sound, Reagan also includes the spellings Raegan. Spellings sometimes heard the same way: Regan.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).