How Many People Are Named Marnie?
An estimated 5,289 people in the United States have the first name Marnie. It is almost exclusively a female name. The average bearer is 48 years old, and Marnie peaked in popularity in 1969 with 510 births that year.
Below you will find a full statistical profile of Marnie 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 Marnie paired with any surname.
Estimated Living Americans
5,289
About 1 in 64,805 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
48
years old
Peak Year
1969
510 births
Total Registered
6,054
since 1880
Gender Distribution for Marnie
Marnie is almost exclusively a female name. Out of 6,054 total births registered, 100.0% were female.
Marnie as a female name
Ranked #2,488 in 2024
72 female births in 2024
Peak: 1969 (510 births)
Marnie: Popularity Over Time
SSA records for Marnie span from the 1910s to the 2020s, covering 12 decades of naming data. The most popular decade for this name was the 1970s, when 2,263 babies were registered. Marnie has declined significantly from its peak in the 1970s. Recent registrations are a fraction of what they were at the name's height.
Marnie by Decade
How has Marnie 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.
Marnie by State
Birth registrations for Marnie span all 41 states and territories in the SSA database. The highest counts are in California, New York, Michigan. The lowest are in New Hampshire, Kansas, Hawaii. On average, about 87 Marnies were registered per state.
Marnie + Last Name Combinations
How many people share a full name with Marnie as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Marnie
Other first names starting with M with a similar number of bearers.
Marnie: Questions and Answers
How many people in the U.S. are named Marnie?
We estimate approximately 5,289 people named Marnie 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 64,805 Americans share this first name.
Is Marnie a common name?
Marnie is classified as "Rare" and is more popular than 96.7% of all first names in the SSA database. A total of 6,054 births have been registered with this name since 1880.
When was Marnie most popular?
Marnie reached peak popularity in 1969, when 510 babies were given this name. The average age of a living person named Marnie is approximately 48 years old, reflecting when the name was most commonly given.
Is Marnie a female name?
Marnie is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Marnie Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Marnie Smith, Marnie Johnson, Marnie 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