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).
Carla
Carla is now well below its former popularity. All-time it's been given to 242,710 U.S. babies, the 903rd most common name by sound today, peaking at 7,775 in 1962, with 563 in 2025.
By sound, Carla also includes the spellings Karla.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).