Humanverse

Keily vs Keirsten

American parents have registered 5,360 Keilys since 1880, against 1,370 Keirstens. Keily is still ahead, with 194 babies in 2025.

Babies given each name, 1880–2025

Births per year: Keily against Keirsten, 1880 to 2025 0 100 200 300 400 1880 1900 1920 1940 1960 1980 2000 2020

Keily Keirsten

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 56 years in which either name was published, Keirsten for 31 years and Keily for 25 years. The lead changed hands 3 times.

Side by side

  Keily Keirsten
Total US births 5,3601,370
Most in one year 32866
Babies in 2025 194under 5
Estimated living today 5,3001,300
Median age today 1026
Peak year 20182005
Best rank 827th girls2,580th girls
Rank in 2025 1,190thunranked
First recorded 19691968
Girls / boys 5,355 / 51,370 / 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 Keirstens alive today are over 26; half the Keilys are over 10. That is 16 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: Keily and Keirsten.