Humanverse

Casie vs Cassie

American parents have registered 47,027 Cassies since 1880, against 4,818 Casies. Cassie is still ahead, with 175 babies in 2025.

Babies given each name, 1880–2025

Births per year: Casie against Cassie, 1880 to 2025 0 600 1.2k 1.8k 2.4k 1880 1900 1920 1940 1960 1980 2000 2020

Casie Cassie

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

Cassie has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.

The closest they came was 1974, when Casie had 103 and Cassie had 341.

Side by side

  Casie Cassie
Total US births 4,81847,027
Most in one year 2342,207
Babies in 2025 6175
Estimated living today 4,70040,000
Median age today 3937
Peak year 19831982
Best rank 720th girls137th girls
Rank in 2025 13,208th1,279th
First recorded 19621880
Girls / boys 4,800 / 1846,642 / 385

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 Casies alive today are over 39; half the Cassies are over 37. That is 2 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 Casie Cassie
England and Wales 1932,408
Ireland 3594
Northern Ireland 4563

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: Casie and Cassie.