Humanverse

Kace vs Kacper

American parents have registered 3,219 Kaces since 1880, against 1,102 Kacpers. Kace is still ahead, with 221 babies in 2025.

Babies given each name, 1880–2025

Births per year: Kace against Kacper, 1880 to 2025 0 80 160 240 320 1880 1900 1920 1940 1960 1980 2000 2020

Kace Kacper

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 38 years in which either name was published, Kace for 22 years and Kacper for 16 years. The lead changed hands 6 times.

Side by side

  Kace Kacper
Total US births 3,2191,102
Most in one year 31288
Babies in 2025 22111
Estimated living today 3,2001,100
Median age today 617
Peak year 20192007
Best rank 759th boys1,713th boys
Rank in 2025 1,015th7,194th
First recorded 19861994
Girls / boys 31 / 3,1880 / 1,102

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 Kacpers alive today are over 17; half the Kaces are over 6. That is 11 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 Kace Kacper
England and Wales 624,408
Scotland 3428

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: Kace and Kacper.