Humanverse

Zachari vs Zack

American parents have registered 9,012 Zacks since 1880, against 907 Zacharis. Zack is still ahead, with 126 babies in 2025.

Babies given each name, 1880–2025

Births per year: Zachari against Zack, 1880 to 2025 0 60 120 180 240 1880 1900 1920 1940 1960 1980 2000 2020

Zachari Zack

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

Zack has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.

The closest they came was 1985, when Zachari had 30 and Zack had 57.

Side by side

  Zachari Zack
Total US births 9079,012
Most in one year 36237
Babies in 2025 9126
Estimated living today 8806,800
Median age today 2620
Peak year 19912008
Best rank 2,052nd boys886th boys
Rank in 2025 8,243rd1,425th
First recorded 19771880
Girls / boys 0 / 9070 / 9,012

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 Zacharis alive today are over 26; half the Zacks are over 20. That is 6 years between them: two names in use at the same time, worn by two different generations.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Zachari Zack
England and Wales 737,209
France 2502,665

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: Zachari and Zack.