Heidie vs Heily

Babies given each name, 1880–2025

Heidie Heily

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 62 years in which either name was published, Heidie for 34 years and Heily for 28 years. The lead changed hands 3 times.

• 1959–1992 Heidie ahead
• 1993 Heily ahead
• 1996–1998 Heidie ahead
• 1999–2025 Heily ahead

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 Heidies alive today are over 47; half the Heilys are over 13. That is 34 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.

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

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