Total births
304
Girls' name · since 1921
Thomasa
304 babies named Thomasa in U.S. Social Security records since 1921, with the highest year being 1961. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 304
- total births
- 1921–1992
- years on record
- 1960s
- peak decade
- 41%
- born in that decade
Thomasa sits outside today's top ranks for girls, with 304 recorded since 1921.
Thomasa has 304 recorded births among girls since 1921, per the U.S. Social Security Administration, though it falls outside today's most-used girls names, busiest in the 1960s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1921 to 1992.
- 304 total births
- 1921–1992 years on record
- 1960s peak decade
- 41% born in that decade
Data updated Jul 2026
The verdict
304 girls have been named Thomasa since 1921, peaking in the 1960s, last recorded in 1992.
- 304
- total births
- 1921–1992
- years on record
- 1960s
- peak decade
- 41%
- born in that decade
1960s
Peak decade
41% of everyone ever named Thomasa was born in this single decade.
1961
Single peak year
20 babies were named Thomasa in 1961 - its busiest year on record.
Thomasa's usage pattern, beyond the headline number
Splitting Thomasa's full recorded timeline at 1966, 38% of its total births fall in the more recent half of the record versus 62% in the earlier half -- the name was more prevalent in its earlier era than it is today. Its quietest year on record was 1921, with just 5 recorded births -- worth weighing against the 1961 peak of 20 to see the full range of the name's swing in popularity.
Thomasa at a glance
Last recorded 1992Peak year
1961
Current rank
Unranked
Active since
1921
Thomasa popularity over time
Annual U.S. births registered with the Social Security Administration · 1921–1992
- Peak year (1961)
- 20
- Annual births at peak, across 72 years of records
Thomasa by decade
Total births in each ten-year window, peak vs trough at a glance
1960s was Thomasa's strongest decade.
125 babies received the name during that ten-year window, about 41% of all-time use.
Thomasa births by decade
Total births in each ten-year window
- 1920s 21
1920s
21 births
- 1930s 6
1930s
6 births
- 1940s 6
1940s
6 births
- 1950s
1950s
57 births
- 1960s
1960s
125 births
- 1970s 46
1970s
46 births
- 1980s 32
1980s
32 births
- 1990s 11
1990s
11 births
What this shows Peak: 1960s at 125 births (41% of all-time use).
Thomasa by state
Where Thomasa concentrates geographically, total births since 1921
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Texas | | 8 | 2.6% |
Texas share of Thomasa's total US births 2.6%
8 of 304 births nationwide.
Frequently Asked Questions
How popular is the name Thomasa? ▼
Since 1921, Social Security records show 304 babies named Thomasa. The most recent recorded year was 1992. Its busiest year on record was 1961, with 20 births.
When was Thomasa most popular? ▼
Thomasa was most popular in the 1960s decade with 125 total births. The single peak year was 1961.
Where is Thomasa most popular? ▼
The top states for the name Thomasa are Texas (8 births).
How long has the name Thomasa been used? ▼
Thomasa has been recorded in Social Security data since 1921, spanning 72 years of data through 1992.
What names are similar to Thomasa? ▼
Names with a similar sound or spelling include Thomas, Thomasina, Thora, Thomasine, and 4 more. These share a common prefix and are also used for girls.
What to do with Thomasa's data
- Thomasa's decade-level peak was the 1960s (125 total births); usage has since declined to 11 in the 1990s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Texas records the most Thomasas (8 births) -- see the full state breakdown if geography matters to your decision. Texas names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Thomasa
Nearby Names Like Thomasa
Names with a similar sound, spelling, or feel to Thomasa
Thomas Girl
#15301 8,511 births
Thomasina Girl
3,765 births
Thora Girl
#4896 2,424 births
Thomasine Girl
2,234 births
Thomasena Girl
768 births
Compare Thomasa side by side: Thomasa vs Thomas Thomasa vs Thomasina Thomasa vs Thora
Related Names
Names with a similar number of total births
Data Sources
Data as of July 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1921–1992 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Thomasa: Baby Name Since 1921 - 304 Births, Peak 1961." NameAlmanac. Accessed via https://namealmanac.com/name/thomasa. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Thomasa draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.