Humanverse

Kaylee vs Kayleen

American parents have registered 140,601 Kaylees since 1880, against 7,995 Kayleens. Kaylee is still ahead, with 1,205 babies in 2025.

Babies given each name, 1880–2025

Births per year: Kaylee against Kayleen, 1880 to 2025 0 2k 4k 6k 8k 1880 1900 1920 1940 1960 1980 2000 2020

Kaylee Kayleen

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 91 years in which either name was published, Kaylee for 48 years and Kayleen for 43 years. The lead changed hands 3 times.

Side by side

  Kaylee Kayleen
Total US births 140,6017,995
Most in one year 7,225284
Babies in 2025 1,20570
Estimated living today 139,0007,700
Median age today 1821
Peak year 20092010
Best rank 26th girls915th girls
Rank in 2025 255th2,514th
First recorded 19431934
Girls / boys 140,425 / 1767,995 / 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 Kayleens alive today are over 21; half the Kaylees are over 18. That is 3 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.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Kaylee Kayleen
England and Wales 1,23111
France 745260

Every spelling a country files separately is added together, over whatever years that country publishes — which is not the same range in any two of them, so read the columns against each other and not the rows.

Compare something else

Related comparisons

Social Security Administration birth records, 1880–2025, public domain. Full histories: Kaylee and Kayleen.