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).
Cohen has been climbing in recent years. All-time it's been given to 36,513 U.S. babies, the 288th most common name by sound today, peaking at 2,921 in 2025, with 2,921 in 2025.
By sound, Cohen also includes the spellings Kohen, Coen.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).