Kathy vs Kathyjo
American parents have registered 334,870 Kathys since 1880, against 129 Kathyjos. Kathy is still ahead, with 48 babies in 2025.
Babies given each name, 1880–2025
Kathy Kathyjo
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
Kathy has been the commoner name in every year either was published, 1910 to 2025. The lead has never changed hands.
The closest they came was 1979, when Kathy had 1,117 and Kathyjo had 10.
Side by side
| Kathy | Kathyjo | |
|---|---|---|
| Total US births | 334,870 | 129 |
| Most in one year | 23,983 | 17 |
| Babies in 2025 | 48 | under 5 |
| Estimated living today | 275,000 | 120 |
| Median age today | 66 | 53 |
| Peak year | 1958 | 1970 |
| Best rank | 14th girls | 3,577th girls |
| Rank in 2025 | 3,249th | unranked |
| First recorded | 1910 | 1952 |
| Girls / boys | 334,131 / 739 | 129 / 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 Kathys alive today are over 66; half the Kathyjos are over 53. That is 13 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: Kathy and Kathyjo.