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).
Indie
Indie has been climbing in recent years. All-time it's been given to 7,859 U.S. babies, the 716th most common name by sound today, peaking at 910 in 2024, with 887 in 2025.
By sound, Indie also includes the spellings Indy.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).