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Kaia vs Kaison

American parents have registered 20,967 Kaias since 1880, against 7,198 Kaisons. Kaia is still ahead, with 1,623 babies in 2025.

Babies given each name, 1880–2025

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

Kaia Kaison

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 Kaison had 655.

Side by side

  Kaia Kaison
Total US births 20,9677,198
Most in one year 1,680655
Babies in 2025 1,623562
Estimated living today 21,0007,100
Median age today 75
Peak year 20242020
Best rank 180th girls454th boys
Rank in 2025 193rd539th
First recorded 19551989
Girls / boys 20,909 / 5816 / 7,182

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 Kaisons 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 Kaison
England and Wales 1,716439
Ireland 26714
Scotland 13329
France 140 Kaïa5
Northern Ireland 716

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 Kaison.