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).
Clara
Clara is down from its peak but still widely used. All-time it's been given to 301,540 U.S. babies, the 248th most common name by sound today, peaking at 5,800 in 1918, with 3,601 in 2025.
Clara has no common alternate spellings by sound. Spellings sometimes heard the same way: Klara.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).