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).
Elijah climbed for decades and has been a steadily popular name ever since. All-time it's been given to 397,596 U.S. babies, the 12th most common name by sound today, peaking at 14,653 in 2016, with 11,791 in 2025.
By sound, Elijah also includes the spellings Alijah.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).