Masako vs Masen
American parents have registered 3,335 Masens since 1880, against 821 Masakos. Masen is still ahead, with 44 babies in 2025.
Babies given each name, 1880–2025
Masako Masen
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 68 years in which either name was published, Masen for 36 years and Masako for 32 years. The lead changed hands once.
Side by side
| Masako | Masen | |
|---|---|---|
| Total US births | 821 | 3,335 |
| Most in one year | 58 | 330 |
| Babies in 2025 | under 5 | 44 |
| Estimated living today | 50 | 3,300 |
| Median age today | 89 | 13 |
| Peak year | 1921 | 2012 |
| Best rank | 969th girls | 723rd boys |
| Rank in 2025 | unranked | 2,833rd |
| First recorded | 1909 | 1990 |
| Girls / boys | 821 / 0 | 92 / 3,243 |
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 Masakos alive today are over 89; half the Masens are over 13. That is 76 years between them: two names in use at the same time, worn by two different generations.
Where each one is strongest
- Masako Hawaii (164.6×), California (4.3×), Washington (3.3×)
- Masen Arizona (3.0×), Utah (2.9×), Washington (2.5×)
How much commoner the name is in that state than it is nationally, from births recorded since 1910.
Compare something else
Related comparisons
Social Security Administration birth records, 1880–2025, public domain. Full histories: Masako and Masen.