Total births
1,895
Boys' name · since 1895
Casimer
Casimer has 1,895 recorded births since 1895 in federal Social Security data, most heavily in 1918 -- full year-by-year trend, decade aggregates, and state rankings follow.
- 1,895
- total births
- 1895–2017
- years on record
- 1910s
- peak decade
- 40%
- born in that decade
Casimer sits outside today's top ranks for boys, with 1,895 recorded since 1895.
According to the U.S. Social Security Administration, Casimer has been recorded 1,895 times among boys since 1895, though it is not among the currently most-used boys names, with its heaviest use in the 1910s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1895 to 2017.
- 1,895 total births
- 1895–2017 years on record
- 1910s peak decade
- 40% born in that decade
Data updated Jul 2026
The verdict
1,895 boys have been named Casimer since 1895, peaking in the 1910s, last recorded in 2017.
- 1,895
- total births
- 1895–2017
- years on record
- 1910s
- peak decade
- 40%
- born in that decade
1910s
Peak decade
40% of everyone ever named Casimer was born in this single decade.
1918
Single peak year
135 babies were named Casimer in 1918 - its busiest year on record.
Casimer's usage pattern, beyond the headline number
Divide Casimer's SSA record in two at 1933 and the more recent half accounts for 18% of all births, the earlier half the remaining 82%, consistent with a name more common in the past than in recent years. Its calmest year was 1964, with only 5 births recorded -- set against the 1918 peak of 135, that's the full swing in one name's fortunes.
Casimer at a glance
Last recorded 2017Peak year
1918
Current rank
Unranked
Active since
1895
Casimer popularity over time
Annual U.S. births registered with the Social Security Administration · 1895–2017
- Peak year (1918)
- 135
- Annual births at peak, across 123 years of records
Casimer by decade
Total births in each ten-year window, peak vs trough at a glance
1910s was Casimer's strongest decade.
767 babies received the name during that ten-year window, about 40% of all-time use.
Casimer births by decade
Total births in each ten-year window
- 1890s 13
1890s
13 births
- 1900s 61
1900s
61 births
- 1910s
1910s
767 births
- 1920s
1920s
639 births
- 1930s 158
1930s
158 births
- 1940s 123
1940s
123 births
- 1950s 87
1950s
87 births
- 1960s 18
1960s
18 births
- 1970s 7
1970s
7 births
- 1980s 6
1980s
6 births
- 1990s 6
1990s
6 births
- 2000s 5
2000s
5 births
- 2010s 5
2010s
5 births
What this shows Peak: 1910s at 767 births (40% of all-time use).
How Casimer 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 Casimer's total volume
Casimer vs 15 similarly-sized boys names
Casimer by state
Where Casimer concentrates geographically, total births since 1895
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Illinois | | 312 | 16.5% |
| #2 | New York | | 279 | 14.7% |
| #3 | Michigan | | 233 | 12.3% |
| #4 | Pennsylvania | | 159 | 8.4% |
| #5 | Ohio | | 95 | 5.0% |
| #6 | New Jersey | | 46 | 2.4% |
| #7 | Indiana | | 28 | 1.5% |
| #8 | Connecticut | | 27 | 1.4% |
Illinois share of Casimer's total US births 16.5%
Even split
312 of 1,895 births nationwide. Compared to a flat distribution across 10 reporting states.
Casimer appears in 10 states. Explore state details →
Frequently Asked Questions
How popular is the name Casimer? ▼
Since 1895, Social Security records show 1,895 babies named Casimer. The most recent recorded year was 2017. Its busiest year on record was 1918, with 135 births.
When was Casimer most popular? ▼
Casimer was most popular in the 1910s decade with 767 total births. The single peak year was 1918.
Where is Casimer most popular? ▼
The top states for the name Casimer are Illinois (312 births), New York (279 births), Michigan (233 births).
How long has the name Casimer been used? ▼
Records for Casimer go back to 1895, giving 123 years of history through 2017.
What names are similar to Casimer? ▼
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 Casimer's data
- Casimer's decade-level peak was the 1910s (767 total births); usage has since declined to 5 in the 2010s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Illinois records the most Casimers (312 births) -- see the full state breakdown if geography matters to your decision. Illinois names
- 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 Casimer
Nearby Names Like Casimer
Names with a similar sound, spelling, or feel to Casimer
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 Casimer side by side: Casimer vs Casey Casimer vs Cash Casimer vs Cason
Related Names
Names with a similar number of total births
Data Sources
Data as of July 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, 1895–2017 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Casimer: Baby Name Since 1895 - 1,895 Births, Peak 1918." NameAlmanac. Accessed via https://namealmanac.com/name/casimer. 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 Casimer 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 July 2026.