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Leon vs Leoncio

American parents have registered 184,074 Leons since 1880, against 523 Leoncios. Leon is still ahead, with 2,583 babies in 2025.

Babies given each name, 1880–2025

Births per year: Leon against Leoncio, 1880 to 2025 0 800 1.6k 2.4k 3.2k 1880 1900 1920 1940 1960 1980 2000 2020

Leon Leoncio

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

Leon 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 2004, when Leon had 462 and Leoncio had 14.

Side by side

  Leon Leoncio
Total US births 184,074523
Most in one year 2,71416
Babies in 2025 2,58311
Estimated living today 92,000490
Median age today 4929
Peak year 19242007
Best rank 76th boys5,434th boys
Rank in 2025 138th7,194th
First recorded 18801951
Girls / boys 1,436 / 182,6380 / 523

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 Leons alive today are over 49; half the Leoncios are over 29. That is 20 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 Leon Leoncio
France 138,195 Léon5

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: Leon and Leoncio.