Jiles vs Jillian
American parents have registered 83,424 Jillians since 1880, against 639 Jileses. Jillian is still ahead, with 177 babies in 2025.
Babies given each name, 1880–2025
Jiles Jillian
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 115 years in which either name was published, Jillian for 76 years and Jiles for 39 years. The lead changed hands 5 times.
Side by side
| Jiles | Jillian | |
|---|---|---|
| Total US births | 639 | 83,424 |
| Most in one year | 19 | 3,070 |
| Babies in 2025 | 8 | 177 |
| Estimated living today | 310 | 82,000 |
| Median age today | 38 | 30 |
| Peak year | 1923 | 1982 |
| Best rank | 1,816th boys | 96th girls |
| Rank in 2025 | 8,910th | 1,261st |
| First recorded | 1892 | 1944 |
| Girls / boys | 0 / 639 | 83,197 / 227 |
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 Jileses alive today are over 38; half the Jillians are over 30. That is 8 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: Jiles and Jillian.