Humanverse

Jacelynn vs Jack

American parents have registered 759,677 Jacks since 1880, against 959 Jacelynns. Jack is still ahead, with 8,754 babies in 2025.

Babies given each name, 1880–2025

Births per year: Jacelynn against Jack, 1880 to 2025 0 4k 8k 12k 16k 1880 1900 1920 1940 1960 1980 2000 2020

Jacelynn Jack

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

Jack 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 2015, when Jacelynn had 75 and Jack had 8,520.

Side by side

  Jacelynn Jack
Total US births 959759,677
Most in one year 7512,884
Babies in 2025 258,754
Estimated living today 950419,000
Median age today 1123
Peak year 20151927
Best rank 2,431st girls16th boys
Rank in 2025 5,099th15th
First recorded 19951880
Girls / boys 959 / 02,734 / 756,943

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 Jacks alive today are over 23; half the Jacelynns are over 11. That is 12 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

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: Jacelynn and Jack.