Total births
181
Boys' name · since 1881
Cas
Since 1881, U.S. Social Security records show 181 babies named Cas, peaking in 2020. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #7775
- among boys today
- 181
- born since 1881
- 2010s
- peak decade
- 46%
- more common than other boys
181 babies have been named Cas since 1881, making it today's #7775 boys' name.
Cas has 181 recorded births among boys since 1881, per the U.S. Social Security Administration, ranked #7775 as of the latest data, more common than 46% 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 1881 to 2024.
- #7775 among boys today
- 181 born since 1881
- 2010s peak decade
- 46% more common than other boys
Data updated Jun 2026
The verdict
Cas is currently the #7775 boys' name in America, more common than 46% of boys - 181 born since 1881, peaking in the 2010s.
- #7775
- among boys today
- 181
- born since 1881
- 2010s
- peak decade
- 46%
- more common than other boys
Cas vs. every other boys name in current SSA rankings
#7775
of 14,294 boys in use
More common than 46% of names given to boys today.
2010s
Peak decade
28% of everyone ever named Cas was born in this single decade.
2020
Single peak year
13 babies were named Cas in 2020 - its busiest year on record.
How Cas compares
181 36th percentile among 14,294 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
Cas's all-time total is 51% below the median boys name, and Liam still leads by a wide margin.
| Metric | Cas | Median boys name (Elchonon) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 181 | 367 | 358,536 |
| Peak-year births | 13 | 23 | 22,252 |
Cas's usage pattern, beyond the headline number
Splitting Cas's full recorded timeline at 2007, 56% of its total births fall in the more recent half of the record versus 44% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1902, with just 5 recorded births -- worth weighing against the 2020 peak of 13 to see the full range of the name's swing in popularity.
Cas at a glance
Outside the top 1,000Peak year
2020
Current rank
#7,775
Active since
1881
Cas popularity over time
Annual U.S. births registered with the Social Security Administration · 1881–2024
- Peak year (2020)
- 13
- Annual births at peak, across 144 years of records
Cas by decade
Total births in each ten-year window, peak vs trough at a glance
2010s was Cas's strongest decade.
51 babies received the name during that ten-year window, about 28% of all-time use.
Cas births by decade
Total births in each ten-year window
- 1880s 7
1880s
7 births
- 1900s 5
1900s
5 births
- 1910s 15
1910s
15 births
- 1920s 5
1920s
5 births
- 1930s 5
1930s
5 births
- 1950s 11
1950s
11 births
- 1960s 5
1960s
5 births
- 1980s 12
1980s
12 births
- 1990s 14
1990s
14 births
- 2000s 5
2000s
5 births
- 2010s
2010s
51 births
- 2020s
2020s
46 births
What this shows Peak: 2010s at 51 births (28% of all-time use).
Frequently Asked Questions
How popular is the name Cas? ▼
Cas has been given to 181 babies in the U.S. since 1881, according to SSA data. Among boys, it ranks #7775 as of the latest data. 13 babies were born in 2020, its single highest year.
When was Cas most popular? ▼
Cas was most popular in the 2010s decade with 51 total births. The single peak year was 2020.
How long has the name Cas been used? ▼
Cas has been recorded in Social Security data since 1881, spanning 144 years of data through 2024.
What names are similar to Cas? ▼
Names with a similar sound or spelling include Casey, Cash, Cason, Case, and 4 more. These share a common prefix and are also used for boys.
What to do with Cas's data
- Cas's usage has stayed within range of its 2010s decade-level peak (51 total births) through the 2020s (46) -- a comparatively stable name, not a fading trend.
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Cas
Nearby Names Like Cas
Names with a similar sound, spelling, or feel to Cas
Casey Boy
#311 116,675 births
Cash Boy
#316 27,705 births
Cason Boy
#856 11,308 births
Case Boy
#724 9,926 births
Cassius Boy
#569 9,736 births
Compare Cas side by side: Cas vs Casey Cas vs Cash Cas vs Cason
Related Names
Names with a similar popularity rank to Cas
Data Sources
Data as of June 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, 1881–2024 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Cas: #7775 Boys' Name - 181 Births, Peak 2020." NameAlmanac. Accessed via https://namealmanac.com/name/cas. Licensed CC BY-SA 4.0.
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 Cas 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 June 2026.