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).
Jeremy is now well below its former popularity. All-time it's been given to 469,286 U.S. babies, the 530th most common name by sound today, peaking at 22,793 in 1977, with 1,169 in 2025.
By sound, Jeremy also includes the spellings Jeromy, Jeramy, Jeremie, Jeramie, Jeremey.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).