Casey vs Casper

Babies given each name, 1880–2025

Casey Casper

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 146 years in which either name was published, Casey for 87 years and Casper for 59 years. The lead changed hands 5 times.

• 1880–1902 Casper ahead
• 1903 Casey ahead
• 1904–1909 Casper ahead
• 1910–1911 Casey ahead
• 1912–1941 Casper ahead
• 1942–2025 Casey 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 Caseys alive today are over 36; half the Caspers are over 10. That is 26 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

• Casey Wyoming (2.2×), Montana (2.0×), Idaho (2.0×)
• Casper North Dakota (6.7×), New York (2.5×), Minnesota (2.1×)

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.

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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• Casper vs Cassidy