Humanverse

Jasleidy vs Jason

American parents have registered 1,057,058 Jasons since 1880, against 30 Jasleidys. Jason is still ahead, with 2,224 babies in 2025.

Babies given each name, 1880–2025

Births per year: Jasleidy against Jason, 1880 to 2025 0 15k 30k 45k 60k 1880 1900 1920 1940 1960 1980 2000 2020

Jasleidy Jason

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

Jason has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.

The closest they came was 2025, when Jasleidy had 30 and Jason had 2,224.

Side by side

  Jasleidy Jason
Total US births 301,057,058
Most in one year 3055,944
Babies in 2025 302,224
Estimated living today 30979,000
Median age today 045
Peak year 20251977
Best rank 4,546th girls2nd boys
Rank in 2025 4,546th165th
First recorded 20251880
Girls / boys 30 / 05,028 / 1,052,030

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 Jasons alive today are over 45; half the Jasleidys have not had a first birthday. That is 45 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: Jasleidy and Jason.