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).
Zion
Zion has been climbing in recent years. All-time it's been given to 58,942 U.S. babies, the 246th most common name by sound today, peaking at 3,312 in 2023, with 2,844 in 2025.
By sound, Zion also includes the spellings Zyon.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).