Rock vs Rockie

Babies given each name, 1880–2025

Rock Rockie

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 101 years in which either name was published, Rock for 88 years and Rockie for 13 years. The lead changed hands 18 times.

• 1915–1941 Rock ahead, apart from 2 short spells
• 1948–1951 Rockie ahead
• 1952–2025 Rock ahead, apart from 2 short spells

12 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.

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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• Rockie vs Rochelle
• Rockie vs Rocco