Arlean vs Arlo

Babies given each name, 1880–2025

Arlean Arlo

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 130 years in which either name was published, Arlo for 107 years and Arlean for 23 years. The lead changed hands 17 times.

• 1892–1909 Arlean ahead, apart from one short spell
• 1912–1952 Arlo ahead
• 1963–1965 Arlean ahead
• 1969–2025 Arlo ahead

13 shorter spells of a year or two are folded into the spans above rather than listed separately.

Side by side

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 Arleans alive today are over 72; half the Arlos are over 4. That is 68 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

• Arlean Mississippi (27.2×), Alabama (12.8×), Pennsylvania (2.3×)
• Arlo Oregon (2.9×), Colorado (2.8×), Minnesota (2.8×)

How much commoner the name is in that state than it is nationally, from births recorded since 1910.

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