Humanverse

Kainalu vs Kaitlin

American parents have registered 57,430 Kaitlins since 1880, against 667 Kainalus. Kaitlin is still ahead, with 35 babies in 2025.

Babies given each name, 1880–2025

Births per year: Kainalu against Kaitlin, 1880 to 2025 0 1k 2k 3k 4k 1880 1900 1920 1940 1960 1980 2000 2020

Kainalu Kaitlin

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

Kaitlin has been the commoner name in every year either was published, 1971 to 2025. The lead has never changed hands.

The closest they came was 2022, when Kainalu had 18 and Kaitlin had 23.

Side by side

  Kainalu Kaitlin
Total US births 66757,430
Most in one year 323,612
Babies in 2025 1535
Estimated living today 66056,000
Median age today 1731
Peak year 20031995
Best rank 2,993rd boys94th girls
Rank in 2025 5,861st4,067th
First recorded 19911971
Girls / boys 0 / 66757,355 / 75

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 Kaitlins alive today are over 31; half the Kainalus are over 17. That is 14 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: Kainalu and Kaitlin.