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).
Jace
Jace is down from its peak but still widely used. All-time it's been given to 116,449 U.S. babies, the 198th most common name by sound today, peaking at 11,024 in 2013, with 3,471 in 2025.
By sound, Jace also includes the spellings Jase.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).