Unisex name · since 1919

Alfonsa

144 babies named Alfonsa in U.S. Social Security records since 1919, with the highest year being 1947. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

#15,001 of 45,481
all-time among boys
144
born since 1919
1940s
peak decade

Alfonsa sits outside today's top ranks for boys, with 144 recorded since 1919.

Social Security Administration records show Alfonsa recorded 144 times among boys since 1919, though it doesn't currently rank among the most-used boys names, peaking in the 1940s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1919 to 1972.

  • #15,001 of 45,481 all-time among boys
  • 144 born since 1919
  • 1940s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Alfonsa ranks #15,001 of 45,481 boys' names by all-time recorded births (highest first). 144 born since 1919, peaking in the 1940s.

#15,001 of 45,481
all-time among boys
144
born since 1919
1940s
peak decade
Below the archive median
All-time archive position

Alfonsa's 144 recorded births place it above 66.92% of the 45,481 boys names in the full SSA archive.

National only
State-record footprint

No state rows cleared SSA’s public reporting threshold for this name.

Alfonsa's usage pattern, beyond the headline number

Alfonsa splits its recorded history at 1947: 54% of all births land in the more recent half, 46% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1919 (5 births) -- compare that against the 1947 peak of 11 for a sense of just how much the name's popularity has swung.

Alfonsa popularity over time - boys

Annual U.S. births registered with the Social Security Administration · 1919–1972

Last recorded 1972
Peak year (1947)
11
Annual births at peak, across 54 years of records
4681012 191919301940194319481954195919701972 6

Alfonsa popularity over time - girls

11 total births recorded since 1924 (Alfonsa as girls' name)

Unisex variant - 11 births
4.555.566.5 19241928 5

Alfonsa by decade

1940s is the heaviest window (47 births, 33% of the file).

1940s was Alfonsa's strongest decade.

47 babies received the name during that ten-year window, about 33% of all-time use.

Alfonsa births by decade

Total births in each ten-year window

births

What this shows Peak: 1940s at 47 births (33% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

Frequently Asked Questions

How popular is the name Alfonsa? ▼
144 babies have been named Alfonsa since 1919. All-time, it sits at #15,001 of 45,481 boys' names by recorded births. It was last recorded in 1972. The peak year was 1947 with 11 births.
Where does Alfonsa sit in the SSA name archive? ▼
According to the U.S. Social Security Administration, Alfonsa ranks #15,001 of 45,481 boys' names by all-time recorded births (highest first). All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the null SSA file. See /methodology#corpus-placement.
When was Alfonsa most popular? ▼
Alfonsa was most popular in the 1940s decade with 47 total births. The single peak year was 1947.
Is Alfonsa a unisex name? ▼
Yes, Alfonsa is used for both boys and girls. As a boy's name it has 144 births, and as a girl's name it has 11 births.
How long has the name Alfonsa been used? ▼
The SSA has tracked Alfonsa since 1919 -- 54 years through the most recent 1972 data.
What names are similar to Alfonsa? ▼
Names with a similar sound or spelling include Alfred, Alfredo, Alfonso, Alfonzo, and 4 more. These share a common prefix and are also used for boys.

What to do with Alfonsa's data

  • Alfonsa's decade-level peak was the 1940s (47 total births); usage has since declined to 11 in the 1970s -- if you're weighing a "classic revival" angle, the trend line argues against it.

Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.

Keep exploring Alfonsa

Nearby Names Like Alfonsa

Names with a similar sound, spelling, or feel to Alfonsa

Alfred Boy
#840 243,861 births
Alfredo Boy
#821 57,075 births
Alfonso Boy
#1013 41,464 births
Alfonzo Boy
#3963 5,783 births
Alford Boy
4,790 births

Compare Alfonsa side by side: Alfonsa vs Alfred Alfonsa vs Alfredo Alfonsa vs Alfonso

Or pick any two names to compare →

Related Names

Names with a similar number of total births

Ell
144 births · Peak 1920
Zigmond
144 births · Peak 1919
Zannie
144 births · Peak 1940
Winfrey
144 births · Peak 1932
Parvin
144 births · Peak 1918
Joeph
144 births · Peak 1986
Nial
144 births · Peak 2024
Willi
144 births · Peak 1958

Nationwide names with similar peak year or record span

Two nationwide peer axes for Alfonsa: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.

Data Sources

Data as of August 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, 1919–1972 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

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 Alfonsa 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 August 2026.