Total births
437
Girls' name · since 1920
Marillyn
437 babies named Marillyn in U.S. Social Security records since 1920, with the highest year being 1927. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 437
- total births
- 1920–1947
- years on record
- 1920s
- peak decade
- 53%
- born in that decade
Marillyn sits outside today's top ranks for girls, with 437 recorded since 1920.
Social Security Administration records show Marillyn recorded 437 times among girls since 1920, though it doesn't currently rank among the most-used girls names, peaking in the 1920s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1920 to 1947.
- 437 total births
- 1920–1947 years on record
- 1920s peak decade
- 53% born in that decade
Data updated Jun 2026
The verdict
437 girls have been named Marillyn since 1920, peaking in the 1920s, last recorded in 1947.
- 437
- total births
- 1920–1947
- years on record
- 1920s
- peak decade
- 53%
- born in that decade
1920s
Peak decade
53% of everyone ever named Marillyn was born in this single decade.
1927
Single peak year
40 babies were named Marillyn in 1927 - its busiest year on record.
Marillyn's usage pattern, beyond the headline number
Divide Marillyn's SSA record in two at 1933 and the more recent half accounts for 30% of all births, the earlier half the remaining 70%, consistent with a name more common in the past than in recent years. Its calmest year was 1920, with only 5 births recorded -- set against the 1927 peak of 40, that's the full swing in one name's fortunes.
Marillyn at a glance
Last recorded 1947Peak year
1927
Current rank
Unranked
Active since
1920
Marillyn popularity over time
Annual U.S. births registered with the Social Security Administration · 1920–1947
- Peak year (1927)
- 40
- Annual births at peak, across 28 years of records
Marillyn by decade
Total births in each ten-year window, peak vs trough at a glance
1920s was Marillyn's strongest decade.
231 babies received the name during that ten-year window, about 53% of all-time use.
Marillyn births by decade
Total births in each ten-year window
- 1920s
1920s
231 births
- 1930s
1930s
158 births
- 1940s 48
1940s
48 births
What this shows Peak: 1920s at 231 births (53% of all-time use).
Marillyn by state
Where Marillyn concentrates geographically, total births since 1920
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Illinois | | 17 | 3.9% |
| #2 | California | | 13 | 3.0% |
| #3 | Minnesota | | 11 | 2.5% |
| #4 | Michigan | | 10 | 2.3% |
| #5 | New York | | 5 | 1.1% |
| #6 | Wisconsin | | 5 | 1.1% |
Illinois share of Marillyn's total US births 3.9%
Even split
17 of 437 births nationwide. Compared to a flat distribution across 6 reporting states.
Frequently Asked Questions
How popular is the name Marillyn? ▼
Marillyn has been given to 437 babies in the U.S. since 1920, according to SSA data. Its last appearance in the data was 1947. 40 babies were born in 1927, its single highest year.
When was Marillyn most popular? ▼
Marillyn was most popular in the 1920s decade with 231 total births. The single peak year was 1927.
Where is Marillyn most popular? ▼
The top states for the name Marillyn are Illinois (17 births), California (13 births), Minnesota (11 births).
How long has the name Marillyn been used? ▼
Marillyn has been recorded in Social Security data since 1920, spanning 28 years of data through 1947.
What names are similar to Marillyn? ▼
Names with a similar sound or spelling include Mary, Margaret, Maria, Martha, and 4 more. These share a common prefix and are also used for girls.
What to do with Marillyn's data
- Marillyn's decade-level peak was the 1920s (231 total births); usage has since declined to 48 in the 1940s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Illinois records the most Marillyns (17 births) -- see the full state breakdown if geography matters to your decision. Illinois 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 Marillyn
Nearby Names Like Marillyn
Names with a similar sound, spelling, or feel to Marillyn
Mary Girl
#131 4,141,481 births
Margaret Girl
#119 1,264,774 births
Maria Girl
#74 566,111 births
Martha Girl
#666 551,741 births
Marie Girl
#632 540,077 births
Compare Marillyn side by side: Marillyn vs Mary Marillyn vs Margaret Marillyn vs Maria
Related Names
Names with a similar number of total births
Data Sources
Data as of June 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, 1920–1947 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Marillyn: Baby Name Since 1920 - 437 Births, Peak 1927." NameAlmanac. Accessed via https://namealmanac.com/name/marillyn. 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 Marillyn 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 June 2026.