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.

#3,421 of 45,481
all-time among boys
1,895
born since 1895
1910s
peak 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.

  • #3,421 of 45,481 all-time among boys
  • 1,895 born since 1895
  • 1910s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Casimer ranks #3,421 of 45,481 boys' names by all-time recorded births (highest first). 1,895 born since 1895, peaking in the 1910s.

#3,421 of 45,481
all-time among boys
1,895
born since 1895
1910s
peak decade
Above the archive median
All-time archive position

Casimer's 1,895 recorded births place it above 92.47% of the 45,481 boys names in the full SSA archive.

10 jurisdictions
State-record footprint

10 jurisdictions carry state-level records, led by Illinois.

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 popularity over time

Annual U.S. births registered with the Social Security Administration · 1895–2017

Last recorded 2017
Peak year (1918)
135
Annual births at peak, across 123 years of records
050100150 189519101919192819371947195620092017 5

Casimer by decade

1910s is the heaviest window (767 births, 40% of the file).

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

births

What this shows Peak: 1910s at 767 births (40% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

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 Scatter plot of 16 data points. 0%5%10%15%20% 050100150 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year -126, 2.9%-49, 4.8%-50, 5.6%-114, 3%-67, 5%-17, 16%-39, 15%-55, 7.9%-58, 5.9%-44, 5.1%-54, 4.5%-115, 1.9%-116, 5.2%-60, 2.9%-51, 6.8%Casimer-123, 7.1%Casimer
Casimer vs 15 similarly-sized boys names

Casimer by state

Where Casimer concentrates geographically, total births since 1895

Geographically diffuse
Top 8 states by recorded births for the name Casimer
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. Across the full SSA archive it ranks #3,421 of 45,481 boys' names by total births. The most recent recorded year was 2017. Its busiest year on record was 1918, with 135 births.
Where does Casimer sit in the SSA name archive?
According to the U.S. Social Security Administration, Casimer ranks #3,421 of 45,481 boys' names by all-time recorded births (highest first). All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the null SSA file. See /methodology#corpus-placement.
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

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

Names with a similar number of total births

Nationwide names with similar peak year or record span

Two nationwide peer axes for Casimer: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

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, 1895–2017 (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 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 August 2026.