Boys' name · since 1880
Cassius
9,736 babies named Cassius in U.S. Social Security records since 1880, with the highest year being 2021. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #1,225 of 45,481
- all-time among boys
- #582 of 13,930
- 2025 SSA year
- 9,736
- born since 1880
- 2010s
- peak decade
Cassius currently ranks #582 among boys' names in America, with 9,736 babies recorded since 1880.
Cassius has 9,736 recorded births among boys since 1880, per the U.S. Social Security Administration, ranked #582 as of the latest data, more common than 96% of boys, busiest in the 2010s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1880 to 2025.
- #1,225 of 45,481 all-time among boys
- #582 of 13,930 2025 SSA year
- 9,736 born since 1880
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Cassius ranks #1,225 of 45,481 boys' names by all-time recorded births (highest first) and #582 of 13,930 among boys' names in 2025. 9,736 born since 1880, peaking in the 2010s.
- #1,225 of 45,481
- all-time among boys
- #582 of 13,930
- 2025 SSA year
- 9,736
- born since 1880
- 2010s
- peak decade
Cassius's 9,736 recorded births place it above 97.3% of the 45,481 boys names in the full SSA archive.
45 jurisdictions carry state-level records, led by California.
How Cassius compares
9,736 Top 9% higher than 91% of 13,930 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Cassius's all-time total is 26x the median boys name, and Liam still leads by a wide margin.
| Metric | Cassius | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 9,736 | 369 | 358,536 |
| Peak-year births | 607 | 34 | 22,252 |
Cassius's usage pattern, beyond the headline number
Cassius splits its recorded history at 1967: 93% of all births land in the more recent half, 7% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1887 (5 births) -- compare that against the 2021 peak of 607 for a sense of just how much the name's popularity has swung.
Cassius popularity over time - boys
Annual U.S. births registered with the Social Security Administration · 1880–2025
- Peak year (2021)
- 607
- Annual births at peak, across 146 years of records
Cassius popularity over time - girls
30 total births recorded since 2017 (Cassius as girls' name)
Cassius by decade
2010s is the heaviest window (3,635 births, 37% of the file).
2010s was Cassius's strongest decade.
3,635 babies received the name during that ten-year window, about 37% of all-time use.
Cassius births by decade
Total births in each ten-year window
- 1880s 82
1880s
82 births
- 1890s 35
1890s
35 births
- 1900s 5
1900s
5 births
- 1910s 95
1910s
95 births
- 1920s 112
1920s
112 births
- 1930s 47
1930s
47 births
- 1940s 59
1940s
59 births
- 1950s 34
1950s
34 births
- 1960s 309
1960s
309 births
- 1970s 189
1970s
189 births
- 1980s 211
1980s
211 births
- 1990s 419
1990s
419 births
- 2000s 1,225
2000s
1,225 births
- 2010s
2010s
3,635 births
- 2020s
2020s
3,279 births
What this shows Peak: 2010s at 3,635 births (37% of all-time use).
How Cassius compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Cassius's total volume
Cassius by state
Where Cassius concentrates geographically, total births since 1880
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 1,057 | 10.9% |
| #2 | Texas | | 669 | 6.9% |
| #3 | New York | | 444 | 4.6% |
| #4 | Washington | | 360 | 3.7% |
| #5 | Florida | | 334 | 3.4% |
| #6 | Ohio | | 305 | 3.1% |
| #7 | Michigan | | 285 | 2.9% |
| #8 | Pennsylvania | | 276 | 2.8% |
1,057 of 9,736 births nationwide. Compared to a flat distribution across 45 reporting states.
Cassius appears in 45 states. Explore state details →
Frequently Asked Questions
How popular is the name Cassius? ▼
Where does Cassius sit in the SSA name archive? ▼
When was Cassius most popular? ▼
Where is Cassius most popular? ▼
How long has the name Cassius been used? ▼
What names are similar to Cassius? ▼
What to do with Cassius's data
- Cassius's usage has stayed within range of its 2010s decade-level peak (3,635 total births) through the 2020s (3,279) -- a comparatively stable name, not a fading trend.
- California records the most Cassiuss (1,057 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Cassius
Nearby Names Like Cassius
Names with a similar sound, spelling, or feel to Cassius
Compare Cassius side by side: Cassius vs Casey Cassius vs Cash Cassius vs Cason
Related Names
Names with a similar popularity rank to Cassius
Nationwide names with similar peak year or record span
Two nationwide peer axes for Cassius: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2021)
Similar record span (~145 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1880–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Cassius draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.