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How Many People Are Named Cassius?
Estimated people named Cassius living in the U.S. today
8,693
Gender distribution
100% male · 0% female in SSA records.
Name scorecard
- Total U.S. births recorded (1880–2024): 9,259
- Peak year: 2021 (612 births)
- Estimated living today: 8,693
Cassius by age group — who carries the name today?
Cassius popularity over time (1880–2024)
Estimated living bearers by birth decade
About the name Cassius
Cassius has been recorded by the Social Security Administration since the 19th century dataset began. In total, 9,259 babies were given the name in the United States between 1880 and 2024. After adjusting each birth cohort for survival to today, an estimated 8,693 bearers are still living — roughly 1 in 39,319 Americans. The name's strongest decade shapes how old most Cassiuss you meet will be, which the age-group breakdown above shows directly. All figures are statistical estimates from public records; see our methodology for sources, the survival model, and the limits of the data (names given to fewer than five babies in a year are not published by the SSA).
Frequently asked questions
How many people are named Cassius in the US?
An estimated 8,693 people named Cassius are living in the United States today, based on SSA birth records from 1880 to 2024 adjusted for survival. That makes Cassius very rare — about 1 in 39,319 Americans.
Is Cassius a boy or girl name?
In SSA records, Cassius is 100% male and 0% female, so it is predominantly a male name.
When was Cassius most popular?
Cassius peaked in 2021, when 612 babies were given the name. Its current trend is rising compared with the previous decade.
How rare is the name Cassius?
Cassius ranks #2,631 of 104,819 first names recorded by the SSA, with a rarity score of 54 out of 100 (higher means rarer).