Girls' name · since 1919

Marilu

2,279 babies named Marilu in U.S. Social Security records since 1919, with the highest year being 1991. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

#4,319 of 72,339
all-time among girls
#6,880 of 17,297
2025 SSA year
2,279
born since 1919
1990s
peak decade

2,279 babies have been named Marilu since 1919, making it today's #6880 girls' name.

Marilu has 2,279 recorded births among girls since 1919, per the U.S. Social Security Administration, ranked #6880 as of the latest data, more common than 60% of girls, busiest in the 1990s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1919 to 2025.

  • #4,319 of 72,339 all-time among girls
  • #6,880 of 17,297 2025 SSA year
  • 2,279 born since 1919
  • 1990s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Marilu ranks #4,319 of 72,339 girls' names by all-time recorded births (highest first) and #6,880 of 17,297 among girls' names in 2025. 2,279 born since 1919, peaking in the 1990s.

#4,319 of 72,339
all-time among girls
#6,880 of 17,297
2025 SSA year
2,279
born since 1919
1990s
peak decade
0%100%Median name50%60.2%
Marilu vs. every other girls name in current SSA rankings
Above the archive median
All-time archive position

Marilu's 2,279 recorded births place it above 94.02% of the 72,339 girls names in the full SSA archive.

6 jurisdictions
State-record footprint

6 jurisdictions carry state-level records, led by California.

How Marilu compares

2,279 Top 21% higher than 79% 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

Marilu's all-time total is 6x the median girls name, and Olivia still leads by a wide margin.

Metric Marilu Median girls name (Kyann) #1 girls name (Olivia)
All-time total births 2,279 376 567,345
Peak-year births 55 21 19,840

Marilu's usage pattern, beyond the headline number

Divide Marilu's SSA record in two at 1974 and the more recent half accounts for 66% of all births, the earlier half the remaining 34%, consistent with a name still gaining ground rather than fading. Its calmest year was 1919, with only 5 births recorded -- set against the 1991 peak of 55, that's the full swing in one name's fortunes.

Marilu popularity over time

Annual U.S. births registered with the Social Security Administration · 1919–2025

Outside the top 1,000
Peak year (1991)
55
Annual births at peak, across 107 years of records
0204060 191919351948196119741987200020132025 16

Marilu by decade

1990s is the heaviest window (443 births, 19% of the file).

1990s was Marilu's strongest decade.

443 babies received the name during that ten-year window, about 19% of all-time use.

Marilu births by decade

Total births in each ten-year window

births

What this shows Peak: 1990s at 443 births (19% of all-time use).

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

How Marilu 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 Marilu's total volume

Marilu vs 15 similarly-sized girls names Scatter plot of 16 data points. 0%5%10%15% 050100150200 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year -42, 7.5%-138, 2%-112, 2.1%-96, 5.4%-55, 3.3%-144, 2.3%-57, 5%-46, 7.1%-146, 3.3%-50, 12.5%-85, 5.4%-83, 5.2%-133, 6.5%-38, 4.5%-50, 5.4%Marilu-107, 2.4%Marilu
Marilu vs 15 similarly-sized girls names

Marilu by state

Where Marilu concentrates geographically, total births since 1919

Regionally concentrated
Top 6 states by recorded births for the name Marilu
Rank State Visual share Births Share of total
#1 California
539 23.7%
#2 Texas
301 13.2%
#3 Illinois
79 3.5%
#4 New York
38 1.7%
#5 Florida
10 0.4%
#6 Michigan
5 0.2%
California share of Marilu's total US births 23.7%
Even split

539 of 2,279 births nationwide. Compared to a flat distribution across 6 reporting states.

Frequently Asked Questions

How popular is the name Marilu?
Since 1919, Social Security records show 2,279 babies named Marilu. Across the full SSA archive it ranks #4,319 of 72,339 girls' names by total births. In 2025, it holds #6,880 of 17,297 among girls. Its busiest year on record was 1991, with 55 births.
Where does Marilu sit in the SSA name archive?
According to the U.S. Social Security Administration, Marilu ranks #4,319 of 72,339 girls' names by all-time recorded births (highest first) and #6,880 of 17,297 among girls' names in 2025. All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the 2025 SSA file. See /methodology#corpus-placement.
When was Marilu most popular?
Marilu was most popular in the 1990s decade with 443 total births. The single peak year was 1991.
Where is Marilu most popular?
The top states for the name Marilu are California (539 births), Texas (301 births), Illinois (79 births).
How long has the name Marilu been used?
Records for Marilu go back to 1919, giving 107 years of history through 2025.
What names are similar to Marilu?
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 Marilu's data

  • Marilu's decade-level peak was the 1990s (443 total births); usage has since declined to 88 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
  • California records the most Marilus (539 births) -- see the full state breakdown if geography matters to your decision. California names

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

Keep exploring Marilu

Nearby Names Like Marilu

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

Names with a similar popularity rank to Marilu

Nationwide names with similar peak year or record span

Two nationwide peer axes for Marilu: 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, 1919–2025 (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 Marilu 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.