Total births
49
Girls' name · since 1930
Marlou
49 babies named Marlou in U.S. Social Security records since 1930, with the highest year being 1943. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 49
- total births
- 1930–1960
- years on record
- 1940s
- peak decade
- 47%
- born in that decade
Marlou sits outside today's top ranks for girls, with 49 recorded since 1930.
Social Security Administration records show Marlou recorded 49 times among girls since 1930, though it doesn't currently rank among the most-used girls 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 1930 to 1960.
- 49 total births
- 1930–1960 years on record
- 1940s peak decade
- 47% born in that decade
Data updated Jul 2026
The verdict
49 girls have been named Marlou since 1930, peaking in the 1940s, last recorded in 1960.
- 49
- total births
- 1930–1960
- years on record
- 1940s
- peak decade
- 47%
- born in that decade
1940s
Peak decade
47% of everyone ever named Marlou was born in this single decade.
1943
Single peak year
7 babies were named Marlou in 1943 - its busiest year on record.
Marlou's usage pattern, beyond the headline number
Divide Marlou's SSA record in two at 1947 and the more recent half accounts for 53% of all births, the earlier half the remaining 47%, a genuinely balanced usage pattern. Its calmest year was 1930, with only 5 births recorded -- set against the 1943 peak of 7, that's the full swing in one name's fortunes.
Marlou at a glance
Last recorded 1960Peak year
1943
Current rank
Unranked
Active since
1930
Marlou popularity over time
Annual U.S. births registered with the Social Security Administration · 1930–1960
- Peak year (1943)
- 7
- Annual births at peak, across 31 years of records
Marlou by decade
Total births in each ten-year window, peak vs trough at a glance
1940s was Marlou's strongest decade.
23 babies received the name during that ten-year window, about 47% of all-time use.
Marlou births by decade
Total births in each ten-year window
- 1930s
1930s
16 births
- 1940s
1940s
23 births
- 1950s 5
1950s
5 births
- 1960s 5
1960s
5 births
What this shows Peak: 1940s at 23 births (47% of all-time use).
Frequently Asked Questions
How popular is the name Marlou? ▼
49 babies have been named Marlou since 1930. It was last recorded in 1960. The peak year was 1943 with 7 births.
When was Marlou most popular? ▼
Marlou was most popular in the 1940s decade with 23 total births. The single peak year was 1943.
How long has the name Marlou been used? ▼
Records for Marlou go back to 1930, giving 31 years of history through 1960.
What names are similar to Marlou? ▼
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 Marlou's data
- Marlou's decade-level peak was the 1940s (23 total births); usage has since declined to 5 in the 1960s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- 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 Marlou
Nearby Names Like Marlou
Names with a similar sound, spelling, or feel to Marlou
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 Marlou side by side: Marlou vs Mary Marlou vs Margaret Marlou vs Maria
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, 1930–1960 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Marlou: Baby Name Since 1930 - 49 Births, Peak 1943." NameAlmanac. Accessed via https://namealmanac.com/name/marlou. 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 Marlou 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.