Recorded 1880–2021 Boys' name Peak 1921 117 births

Erasmus — boys' name

117 babies named Erasmus in U.S. Social Security records since 1880, with the highest year being 1921. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1880s161910s281920s301940s51970s102000s52010s112020s12
1920s
Peak decade

26% of everyone ever named Erasmus was born in this single decade.

1921
Single peak year

8 babies were named Erasmus in 1921 — its busiest year on record.

What the Data Says About Erasmus

The Social Security Administration has registered 117 babies named Erasmus between 1880 and 2021, spanning 142 consecutive years of U.S. birth records. As a boy's name, Erasmus currently falls outside the top 1,000 boys' names for 2021. The name reached its historical peak in 1921, when 8 babies received it in a single year.

Decade-level aggregation shows that Erasmus performed strongest in the 1920s, accumulating 30 births during that ten-year window. Across the 8 decades of recorded activity, Erasmus shows notable generational variation in parental adoption. Geographically, the name is most concentrated in New York, which accounts for 5 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Erasmus in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Erasmus 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 117 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.

Erasmus at a glance

Last recorded 2021

Total births

117

Since 1880

142 years of records

Peak year

1921

8 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 2021

Active since

1880

Recorded for 142 years

Last year on file: 2021

Erasmus popularity over time

Annual U.S. births registered with the Social Security Administration · 2021–1880

Last recorded 2021
Peak year (1921)
8
Annual births at peak — across 142 years of records
456789 20212010197019251920191618821880 5

Erasmus by decade

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

Peak: 1920s
Peak decade
1920s
30 births that decade — 26% of Erasmus's all-time total
1880s161910s281920s301940s51970s102000s52010s112020s12

Erasmus by state

Where Erasmus concentrates geographically — total births since 1880

Geographically diffuse
Top 1 states by recorded births for the name Erasmus
Rank State Visual share Births Share of total
#1 New York
5 4.3%
New York share of Erasmus's total US births 4.3%

5 of 117 births nationwide.

Frequently Asked Questions

How popular is the name Erasmus?
117 babies have been named Erasmus since 1880. It was last recorded in 2021. The peak year was 1921 with 8 births.
When was Erasmus most popular?
Erasmus was most popular in the 1920s decade with 30 total births. The single peak year was 1921.
Where is Erasmus most popular?
The top states for the name Erasmus are New York (5 births).
How long has the name Erasmus been used?
Erasmus has been recorded in Social Security data since 1880, spanning 142 years of data through 2021.
What names are similar to Erasmus?
Names with a similar sound or spelling include Erasmo, Eran, Erastus, Erasto, 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, 1880–2021 (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.