Recorded 1892–1938 Girls' name Peak 1918 194 births

Lillias — girls' name

194 babies named Lillias in U.S. Social Security records since 1892, with the highest year being 1918. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1890s101900s111910s701920s721930s31
1920s
Peak decade

37% of everyone ever named Lillias was born in this single decade.

1918
Single peak year

12 babies were named Lillias in 1918 — its busiest year on record.

What the Data Says About Lillias

The Social Security Administration has registered 194 babies named Lillias between 1892 and 1938, spanning 47 consecutive years of U.S. birth records. As a girl's name, Lillias currently falls outside the top 1,000 girls' names for 1938. The name reached its historical peak in 1918, when 12 babies received it in a single year.

Decade-level aggregation shows that Lillias performed strongest in the 1920s, accumulating 72 births during that ten-year window. Across the 5 decades of recorded activity, Lillias shows notable generational variation in parental adoption.

No etymological entry is currently available for Lillias 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 194 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.

Lillias at a glance

Last recorded 1938

Total births

194

Since 1892

47 years of records

Peak year

1918

12 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 1938

Active since

1892

Recorded for 47 years

Last year on file: 1938

Lillias popularity over time

Annual U.S. births registered with the Social Security Administration · 1938–1892

Last recorded 1938
Peak year (1918)
12
Annual births at peak — across 47 years of records
468101214 19381931192619221918191419001892 5

Lillias by decade

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

Peak: 1920s
Peak decade
1920s
72 births that decade — 37% of Lillias's all-time total
1890s101900s111910s701920s721930s31

Frequently Asked Questions

How popular is the name Lillias?
194 babies have been named Lillias since 1892. It was last recorded in 1938. The peak year was 1918 with 12 births.
When was Lillias most popular?
Lillias was most popular in the 1920s decade with 72 total births. The single peak year was 1918.
How long has the name Lillias been used?
Lillias has been recorded in Social Security data since 1892, spanning 47 years of data through 1938.
What names are similar to Lillias?
Names with a similar sound or spelling include Lillian, Lily, Lillie, Lila, and 4 more. These share a common prefix and are also used for girls.

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, 1892–1938 (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.