Recorded 1915–1926 Boys' name Peak 1917 35 births

Casimier — boys' name

35 babies named Casimier in U.S. Social Security records since 1915, with the highest year being 1917. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1910s301920s5
1910s
Peak decade

86% of everyone ever named Casimier was born in this single decade.

1917
Single peak year

7 babies were named Casimier in 1917 — its busiest year on record.

What the Data Says About Casimier

The Social Security Administration has registered 35 babies named Casimier between 1915 and 1926, spanning 12 consecutive years of U.S. birth records. As a boy's name, Casimier currently falls outside the top 1,000 boys' names for 1926. The name reached its historical peak in 1917, when 7 babies received it in a single year.

Decade-level aggregation shows that Casimier performed strongest in the 1910s, accumulating 30 births during that ten-year window. Across the 2 decades of recorded activity, Casimier shows a clear decline from its mid-century high.

No etymological entry is currently available for Casimier in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 35 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Casimier at a glance

Last recorded 1926

Total births

35

Since 1915

12 years of records

Peak year

1917

7 births that year

Strongest decade: 1910s

Current rank

Unranked

Outside the modern top-1,000

As of 1926

Active since

1915

Recorded for 12 years

Last year on file: 1926

Casimier popularity over time

Annual U.S. births registered with the Social Security Administration · 1926–1915

Last recorded 1926
Peak year (1917)
7
Annual births at peak — across 12 years of records
4.555.566.577.5 192619191918191719161915 5

Casimier by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 1910s
Peak decade
1910s
30 births that decade — 86% of Casimier's all-time total
1910s301920s5

Frequently Asked Questions

How popular is the name Casimier?
35 babies have been named Casimier since 1915. It was last recorded in 1926. The peak year was 1917 with 7 births.
When was Casimier most popular?
Casimier was most popular in the 1910s decade with 30 total births. The single peak year was 1917.
How long has the name Casimier been used?
Casimier has been recorded in Social Security data since 1915, spanning 12 years of data through 1926.
What names are similar to Casimier?
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.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1915–1926 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.