Girls' name · since 1898
Marylou
Marylou has 13,112 recorded births since 1898 in federal Social Security data, most heavily in 1942 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #1,410 of 72,339
- all-time among girls
- #4,771 of 17,297
- 2025 SSA year
- 13,112
- born since 1898
- 1940s
- peak decade
Yes -- Marylou is the #4771 most popular girls' name in the U.S. today, with 13,112 recorded since 1898.
Social Security Administration records show Marylou recorded 13,112 times among girls since 1898, holding rank #4771 nationally today, ahead of 72% of girls, 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 1898 to 2025.
- #1,410 of 72,339 all-time among girls
- #4,771 of 17,297 2025 SSA year
- 13,112 born since 1898
- 1940s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Marylou ranks #1,410 of 72,339 girls' names by all-time recorded births (highest first) and #4,771 of 17,297 among girls' names in 2025. 13,112 born since 1898, peaking in the 1940s.
- #1,410 of 72,339
- all-time among girls
- #4,771 of 17,297
- 2025 SSA year
- 13,112
- born since 1898
- 1940s
- peak decade
Marylou's 13,112 recorded births place it above 98.05% of the 72,339 girls names in the full SSA archive.
32 jurisdictions carry state-level records, led by New York.
How Marylou compares
13,112 Top 8% higher than 92% of 17,297 names currently given to girls
Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Marylou's all-time total is 35x the median girls name, and Olivia still leads by a wide margin.
| Metric | Marylou | Median girls name (Kyann) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 13,112 | 376 | 567,345 |
| Peak-year births | 376 | 21 | 19,840 |
Marylou's usage pattern, beyond the headline number
Splitting Marylou's full recorded timeline at 1963, 22% of its total births fall in the more recent half of the record versus 78% in the earlier half -- the name was more prevalent in its earlier era than it is today. Its quietest year on record was 1898, with just 5 recorded births -- worth weighing against the 1942 peak of 376 to see the full range of the name's swing in popularity.
Marylou popularity over time
Annual U.S. births registered with the Social Security Administration · 1898–2025
- Peak year (1942)
- 376
- Annual births at peak, across 128 years of records
Marylou by decade
1940s is the heaviest window (3,141 births, 24% of the file).
1940s was Marylou's strongest decade.
3,141 babies received the name during that ten-year window, about 24% of all-time use.
Marylou births by decade
Total births in each ten-year window
- 1890s 12
1890s
12 births
- 1900s 54
1900s
54 births
- 1910s 313
1910s
313 births
- 1920s 1,251
1920s
1,251 births
- 1930s
1930s
2,621 births
- 1940s
1940s
3,141 births
- 1950s
1950s
2,128 births
- 1960s
1960s
1,598 births
- 1970s 536
1970s
536 births
- 1980s 517
1980s
517 births
- 1990s 356
1990s
356 births
- 2000s 209
2000s
209 births
- 2010s 228
2010s
228 births
- 2020s 148
2020s
148 births
What this shows Peak: 1940s at 3,141 births (24% of all-time use).
How Marylou compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Marylou's total volume
Marylou by state
Where Marylou concentrates geographically, total births since 1898
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | New York | | 1,742 | 13.3% |
| #2 | California | | 1,367 | 10.4% |
| #3 | Pennsylvania | | 1,084 | 8.3% |
| #4 | Texas | | 784 | 6.0% |
| #5 | Illinois | | 730 | 5.6% |
| #6 | New Jersey | | 668 | 5.1% |
| #7 | Michigan | | 598 | 4.6% |
| #8 | Ohio | | 561 | 4.3% |
1,742 of 13,112 births nationwide. Compared to a flat distribution across 32 reporting states.
Marylou appears in 32 states. Explore state details →
Frequently Asked Questions
How popular is the name Marylou? ▼
Where does Marylou sit in the SSA name archive? ▼
When was Marylou most popular? ▼
Where is Marylou most popular? ▼
How long has the name Marylou been used? ▼
What names are similar to Marylou? ▼
What to do with Marylou's data
- Marylou's decade-level peak was the 1940s (3,141 total births); usage has since declined to 148 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- New York records the most Marylous (1,742 births) -- see the full state breakdown if geography matters to your decision. New York names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Marylou
Nearby Names Like Marylou
Names with a similar sound, spelling, or feel to Marylou
Compare Marylou side by side: Marylou vs Mary Marylou vs Margaret Marylou vs Maria
Related Names
Names with a similar popularity rank to Marylou
Nationwide names with similar peak year or record span
Two nationwide peer axes for Marylou: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1942)
Similar record span (~127 yrs)
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, 1898–2025 (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 Marylou 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.