Recorded 1930–1960 Girls' name Peak 1943 49 births

Marlou — girls' name

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.

1930s161940s231950s51960s5

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.

What the Data Says About Marlou

The Social Security Administration has registered 49 babies named Marlou between 1930 and 1960, spanning 31 consecutive years of U.S. birth records. As a girl's name, Marlou currently falls outside the top 1,000 girls' names for 1960. The name reached its historical peak in 1943, when 7 babies received it in a single year.

Decade-level aggregation shows that Marlou performed strongest in the 1940s, accumulating 23 births during that ten-year window. Across the 4 decades of recorded activity, Marlou shows a clear decline from its mid-century high.

No etymological entry is currently available for Marlou 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 49 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.

Marlou at a glance

Last recorded 1960

Total births

49

Since 1930

31 years of records

Peak year

1943

7 births that year

Strongest decade: 1940s

Current rank

Unranked

Outside the modern top-1,000

As of 1960

Active since

1930

Recorded for 31 years

Last year on file: 1960

Marlou popularity over time

Annual U.S. births registered with the Social Security Administration · 1960–1930

Last recorded 1960
Peak year (1943)
7
Annual births at peak — across 31 years of records
4.555.566.577.5 196019501949194819471943193619351930 5

Marlou by decade

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

Peak: 1940s
Peak decade
1940s
23 births that decade — 47% of Marlou's all-time total
1930s161940s231950s51960s5

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?
Marlou has been recorded in Social Security data since 1930, spanning 31 years of data 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.

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, 1930–1960 (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.