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).
Conrad has been climbing in recent years. All-time it's been given to 43,375 U.S. babies, the 856th most common name by sound today, peaking at 845 in 2025, with 845 in 2025.
By sound, Conrad also includes the spellings Konrad.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).