Humanverse

Kaia vs Kaisley

American parents have registered 20,967 Kaias since 1880, against 2,771 Kaisleys. Kaia is still ahead, with 1,623 babies in 2025.

Babies given each name, 1880–2025

Births per year: Kaia against Kaisley, 1880 to 2025 0 500 1k 1.5k 2k 1880 1900 1920 1940 1960 1980 2000 2020

Kaia Kaisley

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

Kaia has been the commoner name in every year either was published, 1955 to 2025. The lead has never changed hands.

The closest they came was 2020, when Kaia had 1,082 and Kaisley had 360.

Side by side

  Kaia Kaisley
Total US births 20,9672,771
Most in one year 1,680360
Babies in 2025 1,623194
Estimated living today 21,0002,800
Median age today 75
Peak year 20242020
Best rank 180th girls755th girls
Rank in 2025 193rd1,190th
First recorded 19552006
Girls / boys 20,909 / 582,771 / 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 Kaias alive today are over 7; half the Kaisleys are over 5. That is 2 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 Kaia Kaisley
England and Wales 1,7168

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: Kaia and Kaisley.