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Alder vs Aldo

American parents have registered 17,743 Aldos since 1880, against 1,431 Alders. Aldo is still ahead, with 241 babies in 2025.

Babies given each name, 1880–2025

Births per year: Alder against Aldo, 1880 to 2025 0 200 400 600 800 1880 1900 1920 1940 1960 1980 2000 2020

Alder Aldo

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 120 years in which either name was published, Aldo for 119 years and Alder for 1 year. The lead changed hands once.

Side by side

  Alder Aldo
Total US births 1,43117,743
Most in one year 139666
Babies in 2025 139241
Estimated living today 1,40015,000
Median age today 519
Peak year 20252007
Best rank 1,401st boys430th boys
Rank in 2025 1,401st960th
First recorded 19031906
Girls / boys 68 / 1,36315 / 17,728

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 Aldos alive today are over 19; half the Alders are over 5. 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.

Both names abroad

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

Country Alder Aldo
England and Wales 9167

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: Alder and Aldo.