How Many People Are Named Merrilyn?
An estimated 324 people in the United States have the first name Merrilyn. It is almost exclusively a female name. The average bearer is 75 years old, and Merrilyn peaked in popularity in 1944 with 40 births that year.
Below you will find a full statistical profile of Merrilyn as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Merrilyn paired with any surname.
Key Insights
- With an average bearer age of 75, Merrilyn is a vintage name most associated with earlier generations. Most living bearers were born before 1961.
Estimated Living Americans
324
About 1 in 1,057,884 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
75
years old
Peak Year
1944
40 births
Total Registered
751
since 1880
Gender Distribution for Merrilyn
Merrilyn is almost exclusively a female name. Out of 751 total births registered, 100.0% were female.
Merrilyn as a female name
Ranked #8,058 in 1973
6 female births in 1973
Peak: 1944 (40 births)
Merrilyn: Popularity Over Time
SSA records for Merrilyn span from the 1920s to the 1970s, covering 6 decades of naming data. The most popular decade for this name was the 1940s, when 291 babies were registered. Merrilyn has declined significantly from its peak in the 1940s. Recent registrations are a fraction of what they were at the name's height.
Merrilyn by Decade
How has Merrilyn 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.
Merrilyn by State
Merrilyn + Last Name Combinations
How many people share a full name with Merrilyn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Merrilyn
Other first names starting with M with a similar number of bearers.
Merrilyn: Questions and Answers
How many people in the U.S. are named Merrilyn?
We estimate approximately 324 people named Merrilyn 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 1,057,884 Americans share this first name.
Is Merrilyn a common name?
Merrilyn is classified as "Very Rare" and is more popular than 80.1% of all first names in the SSA database. A total of 751 births have been registered with this name since 1880.
When was Merrilyn most popular?
Merrilyn reached peak popularity in 1944, when 40 babies were given this name. The average age of a living person named Merrilyn is approximately 75 years old, reflecting when the name was most commonly given.
Is Merrilyn a female name?
Merrilyn is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Merrilyn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Merrilyn Smith, Merrilyn Johnson, Merrilyn 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.
Search for a full name combination
How Many of Me