Illa vs Illya
American parents have registered 1,800 Illas since 1880, against 404 Illyas. Illa is still ahead, with 10 babies in 2025.
Babies given each name, 1880–2025
Illa Illya
Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.
Who was ahead
Of the 97 years in which either name was published, Illa for 77 years and Illya for 20 years. The lead changed hands 8 times.
Side by side
| Illa | Illya | |
|---|---|---|
| Total US births | 1,800 | 404 |
| Most in one year | 58 | 89 |
| Babies in 2025 | 10 | under 5 |
| Estimated living today | 580 | 360 |
| Median age today | 72 | 57 |
| Peak year | 1926 | 1966 |
| Best rank | 980th girls | 827th boys |
| Rank in 2025 | 9,457th | unranked |
| First recorded | 1898 | 1965 |
| Girls / boys | 1,800 / 0 | 39 / 365 |
A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.
Which name is older
Half of the Illas alive today are over 72; half the Illyas are over 57. That is 15 years between them: two names in use at the same time, worn by two different generations.
Compare something else
Related comparisons
Social Security Administration birth records, 1880–2025, public domain. Full histories: Illa and Illya.