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 |
|---|---|---|---|
| 35,812 | ILDEFONSO | 627 | — |
| 35,866 | ISAKSEN | 626 | — |
| 35,866 | IZARD | 626 | — |
| 36,048 | IAFRATE | 622 | — |
| 36,204 | ISLA | 619 | — |
| 36,379 | IMBROGNO | 615 | — |
| 36,379 | INGALSBE | 615 | — |
| 36,525 | INGLETT | 612 | — |
| 36,525 | ISCH | 612 | — |
| 36,630 | ILGENFRITZ | 610 | — |
| 36,695 | ICARD | 609 | — |
| 36,695 | IIDA | 609 | — |
| 36,736 | IGWE | 608 | — |
| 36,838 | INSCORE | 606 | — |
| 36,900 | INGLESE | 605 | — |