Kason vs Kassidee
American parents have registered 14,951 Kasons since 1880, against 657 Kassidees. Kason is still ahead, with 480 babies in 2025.
Babies given each name, 1880–2025
Kason Kassidee
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
Kason has been the commoner name in every year either was published, 1974 to 2025. The lead has never changed hands.
The closest they came was 1992, when Kason had 24 and Kassidee had 10.
Side by side
| Kason | Kassidee | |
|---|---|---|
| Total US births | 14,951 | 657 |
| Most in one year | 899 | 36 |
| Babies in 2025 | 480 | under 5 |
| Estimated living today | 15,000 | 650 |
| Median age today | 10 | 18 |
| Peak year | 2019 | 2001 |
| Best rank | 362nd boys | 3,631st girls |
| Rank in 2025 | 597th | unranked |
| First recorded | 1974 | 1989 |
| Girls / boys | 47 / 14,904 | 657 / 0 |
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 Kassidees alive today are over 18; half the Kasons are over 10. 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: Kason and Kassidee.