Surnames · I
Surname frequency based on U.S. Census Bureau surname data. Rank 1 is the most common surname in the imported Census file.
| Rank | Surname | Count | Rarity |
|---|---|---|---|
| 28,065 | IONESCU | 853 | — |
| 28,437 | ISHIHARA | 839 | — |
| 28,525 | IACOBUCCI | 836 | — |
| 28,552 | IKNER | 835 | — |
| 28,587 | ISENHOWER | 834 | — |
| 28,704 | IRIBE | 830 | — |
| 28,883 | INSERRA | 823 | — |
| 29,019 | IANNACONE | 818 | — |
| 29,019 | IMLAY | 818 | — |
| 29,041 | IMAM | 817 | — |
| 29,334 | ISNER | 806 | — |
| 29,422 | ICENHOUR | 803 | — |
| 29,528 | ISKANDER | 799 | — |
| 29,626 | IKERD | 795 | — |
| 30,013 | ISLES | 782 | — |