How Many People Are Named Marlys?
An estimated 3,234 people in the United States have the first name Marlys. It is almost exclusively a female name. The average bearer is 75 years old, and Marlys peaked in popularity in 1937 with 369 births that year.
Below you will find a full statistical profile of Marlys as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. You can also check how many people share the full name Marlys paired with any surname.
Key Insights
- With an average bearer age of 75, Marlys is a vintage name most associated with earlier generations. Most living bearers were born before 1961.
Estimated Living Americans
3,234
About 1 in 105,985 people in the U.S.
Rarity
Rare
Predicted Gender
Female
99.9% confidence
Average Age
75
years old
Peak Year
1937
369 births
Total Registered
8,963
since 1880
Gender Distribution for Marlys
Marlys is almost exclusively a female name. Out of 8,963 total births registered, 99.9% were female.
Marlys as a male name
Ranked #3,853 in 1938
5 male births in 1938
Peak: 1938 (5 births)
Marlys as a female name
Ranked #16,844 in 2022
5 female births in 2022
Peak: 1937 (369 births)
Marlys in the 2020 Census
The 2020 Census recorded 5,598 people with the first name Marlys, which placed it at #3,644 in the published first-name tables. This is a snapshot of people who already had the name in 2020. The estimated living count elsewhere on this page is different: it is a current estimate built from SSA birth records and age-based survival rates, so the two figures are not expected to match exactly.
Read this section as a snapshot of people who already had the name in 2020. The SSA charts elsewhere on this page are still the better way to see how the name rose, fell, or shifted across generations.
Gender in the 2020 Census
In the 2020 Census, Marlys was recorded as predominantly female. Out of 5,598 people with this name in that snapshot, 0.1% were male and 99.9% were female. That is very close to the long-run birth pattern in SSA records, where the name is female 99.9% of the time.
Census Count
5,598
people with this name
Census Rank
#3,644
among Census first names
Frequency Rate
1.85
per 100,000 people
Recorded Race and Hispanic Origin in the 2020 Census
In the 2020 Census, the first name Marlys was most commonly recorded among people who identified as White (95.64%). The next largest recorded groups were Hispanic (1.79%) and American Indian and Alaska Native (1.11%).
These percentages describe the people who had the first name Marlys in the 2020 Census. They do not tell you the deeper meaning or origin of the name itself.
2020 Census demographic breakdown
Each row shows a recorded Census category for people with the first name Marlys.
| Group | Share | Count |
|---|---|---|
| White | 95.64% | 5,356 |
| Hispanic | 1.79% | 100 |
| American Indian and Alaska Native | 1.11% | 62 |
| Two or More Races | 0.68% | 38 |
| Black | 0.55% | 31 |
| Asian and Pacific Islander | 0.23% | 13 |
The Census published separate sex and race/origin tables for first names, so their total counts can differ slightly for the same name. That is why the race section focuses on the demographic mix rather than repeating a second headline count.
Marlys: Popularity Over Time
SSA records for Marlys span from the 1910s to the 2020s, covering 12 decades of naming data. The most popular decade for this name was the 1930s, when 3,177 babies were registered. Marlys has declined significantly from its peak in the 1930s. Recent registrations are a fraction of what they were at the name's height.
Marlys by Decade
How has Marlys tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Marlys by State
Birth registrations for Marlys span all 14 states and territories in the SSA database. The highest counts are in Minnesota, Iowa, North Dakota. The lowest are in Texas, Michigan, Oregon. On average, about 536 Marlyss were registered per state.
Marlys + Last Name Combinations
How many people share a full name with Marlys as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Marlys
Other first names starting with M with a similar number of bearers.
Marlys: Questions and Answers
How many people in the U.S. are named Marlys?
We estimate approximately 3,234 people named Marlys are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 105,985 Americans share this first name.
Is Marlys a common name?
Marlys is classified as "Rare" and is more popular than 95.4% of all first names in the SSA database. A total of 8,963 births have been registered with this name since 1880.
When was Marlys most popular?
Marlys reached peak popularity in 1937, when 369 babies were given this name. The average age of a living person named Marlys is approximately 75 years old, reflecting when the name was most commonly given.
How common was Marlys in the 2020 Census?
The 2020 Census recorded 5,598 people with the first name Marlys. That placed it at #3,644 in the published Census first-name tables, or 1.85 people per 100,000.
Why is the Census count different from the living estimate?
Because they measure different things. The Census number is a count of people with the name in 2020. The living estimate is a current model based on SSA birth records and survival rates, so it aims to estimate how many people with the name are alive now.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Marlys was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
What does the Census say about the gender split for Marlys?
In the 2020 Census snapshot, Marlys was recorded as predominantly female. The published split was 0.1% male and 99.9% female.
What does the Census say about the background of people named Marlys?
In the 2020 Census, the first name Marlys was most commonly recorded among people who identified as White (95.64%). The next largest recorded groups were Hispanic (1.79%) and American Indian and Alaska Native (1.11%). These percentages describe the people who had the name in the 2020 Census, not the deeper meaning or origin of the name itself.
Why can the Census sex total and race total differ slightly?
The Census published separate first-name tables for sex and for race and Hispanic origin. Those totals can differ slightly for the same name, so the page uses them as two related snapshots rather than treating them as perfectly interchangeable counts.
Does every first name have Census demographic data?
No. The public Census first-name tables only include names that met the Bureau's publication rules. That means some names on this site will have SSA history but no published Census demographic snapshot.
Is Marlys a female name?
Marlys is predominantly female. 99.9% of people with this name are female. See the gender breakdown above for full details.
Why can Marlys have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Marlys peaked in 1937, and the average living bearer is about 75 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Marlys Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Marlys Smith, Marlys Johnson, Marlys Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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