Recorded 1915–1975 Boys' name Peak 1928 71 births

Prospero — boys' name

71 babies named Prospero in U.S. Social Security records since 1915, with the highest year being 1928. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1910s171920s331930s111940s51970s5
1920s
Peak decade

46% of everyone ever named Prospero was born in this single decade.

1928
Single peak year

8 babies were named Prospero in 1928 — its busiest year on record.

What the Data Says About Prospero

The Social Security Administration has registered 71 babies named Prospero between 1915 and 1975, spanning 61 consecutive years of U.S. birth records. As a boy's name, Prospero currently falls outside the top 1,000 boys' names for 1975. The name reached its historical peak in 1928, when 8 babies received it in a single year.

Decade-level aggregation shows that Prospero performed strongest in the 1920s, accumulating 33 births during that ten-year window. Across the 5 decades of recorded activity, Prospero shows a clear decline from its mid-century high.

No etymological entry is currently available for Prospero 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 71 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.

Prospero at a glance

Last recorded 1975

Total births

71

Since 1915

61 years of records

Peak year

1928

8 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 1975

Active since

1915

Recorded for 61 years

Last year on file: 1975

Prospero popularity over time

Annual U.S. births registered with the Social Security Administration · 1975–1915

Last recorded 1975
Peak year (1928)
8
Annual births at peak — across 61 years of records
456789 197519471933193019291928192519241923191719161915 7

Prospero by decade

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

Peak: 1920s
Peak decade
1920s
33 births that decade — 46% of Prospero's all-time total
1910s171920s331930s111940s51970s5

Frequently Asked Questions

How popular is the name Prospero?
71 babies have been named Prospero since 1915. It was last recorded in 1975. The peak year was 1928 with 8 births.
When was Prospero most popular?
Prospero was most popular in the 1920s decade with 33 total births. The single peak year was 1928.
How long has the name Prospero been used?
Prospero has been recorded in Social Security data since 1915, spanning 61 years of data through 1975.
What names are similar to Prospero?
Names with a similar sound or spelling include Prosper, Promise, Prophet, Proctor, 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, 1915–1975 (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.