About one in fifteen girls' first names in the United States begins with the letter J…
This makes letter J an above-average initial for girls' first names – with 26 letters of the alphabet, each letter is the initial of a girls' first names by an average of 3.8 %. The distribution of initial letters is undoubtedly uneven – after all, some letters occur much more frequently, while others are much less frequent. In the US, the most common initials among girls' first names are A and S, while the letters U and X, on the other hand, are initials for very few names.