US rank #9880 Boys' name Peak 1915 465 births

Sylvanus — #9880 US boys' name

465 babies named Sylvanus in U.S. Social Security records since 1880, with the highest year being 1915. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1880s231890s81900s111910s811920s971930s341940s401950s131960s51970s151980s281990s162000s352010s312020s28
#9880
of 14,243 boys in use

More common than 31% of names given to boys today.

1920s
Peak decade

21% of everyone ever named Sylvanus was born in this single decade.

1915
Single peak year

15 babies were named Sylvanus in 1915 — its busiest year on record.

What the Data Says About Sylvanus

The Social Security Administration has registered 465 babies named Sylvanus between 1880 and 2024, spanning 145 consecutive years of U.S. birth records. As a boy's name, Sylvanus currently holds the #9880 rank among boys for 2024. The name reached its historical peak in 1915, when 15 babies received it in a single year.

Decade-level aggregation shows that Sylvanus performed strongest in the 1920s, accumulating 97 births during that ten-year window. Across the 15 decades of recorded activity, Sylvanus shows a clear decline from its mid-century high.

No etymological entry is currently available for Sylvanus 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 465 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.

Sylvanus at a glance

Outside the top 1,000

Total births

465

Since 1880

145 years of records

Peak year

1915

15 births that year

Strongest decade: 1920s

Current rank

#9,880

Among boys

As of 2024

Active since

1880

Recorded for 145 years

Last year on file: 2024

Sylvanus popularity over time

Annual U.S. births registered with the Social Security Administration · 2024–1880

Outside the top 1,000
Peak year (1915)
15
Annual births at peak — across 145 years of records
05101520 202420111993197019431928192019121880 5

Sylvanus by decade

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

Peak: 1920s
Peak decade
1920s
97 births that decade — 21% of Sylvanus's all-time total
1880s231890s81900s111910s811920s971930s341940s401950s131960s51970s151980s281990s162000s352010s312020s28

Frequently Asked Questions

How popular is the name Sylvanus?
465 babies have been named Sylvanus since 1880. It currently ranks #9880 among boys. The peak year was 1915 with 15 births.
When was Sylvanus most popular?
Sylvanus was most popular in the 1920s decade with 97 total births. The single peak year was 1915.
How long has the name Sylvanus been used?
Sylvanus has been recorded in Social Security data since 1880, spanning 145 years of data through 2024.
What names are similar to Sylvanus?
Names with a similar sound or spelling include Sylvester, Sylas, Sylvan, Sylus, and 4 more. These share a common prefix and are also used for boys.

Keep exploring Sylvanus

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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, 1880–2024 (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.