Humanverse

Kacen vs Kaci

American parents have registered 10,183 Kacis since 1880, against 1,675 Kacens. But in 2025 it was Kacen that was commoner, 109 babies to 99.

Babies given each name, 1880–2025

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

Kacen Kaci

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 61 years in which either name was published, Kaci for 59 years and Kacen for 2 years. The lead changed hands 3 times.

Side by side

  Kacen Kaci
Total US births 1,67510,183
Most in one year 206362
Babies in 2025 10999
Estimated living today 1,70010,000
Median age today 728
Peak year 20191990
Best rank 1,012th boys620th girls
Rank in 2025 1,564th2,117th
First recorded 20001965
Girls / boys 0 / 1,67510,009 / 174

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 Kacis alive today are over 28; half the Kacens are over 7. That is 21 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 Kacen Kaci
England and Wales 281,899

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: Kacen and Kaci.