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).
Carson
Carson is down from its peak but still widely used. All-time it's been given to 193,444 U.S. babies, the 122nd most common name by sound today, peaking at 8,427 in 2018, with 4,797 in 2025.
By sound, Carson also includes the spellings Karson, Karsyn, Carsyn, Karsen, Carsen.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).