How Many People Are Named Effy?
An estimated 82 people in the United States have the first name Effy. It is almost exclusively a female name. The average bearer is 8 years old, and Effy peaked in popularity in 2023 with 14 births that year.
Below you will find a full statistical profile of Effy 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 Effy paired with any surname.
Key Insights
- Effy is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
82
About 1 in 4,179,931 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
8
years old
Peak Year
2023
14 births
Total Registered
83
since 1880
Gender Distribution for Effy
Effy is almost exclusively a female name. Out of 83 total births registered, 100.0% were female.
Effy as a female name
Ranked #11,334 in 2024
8 female births in 2024
Peak: 2023 (14 births)
Effy: Popularity Over Time
SSA records for Effy span from the 2010s to the 2020s, covering 2 decades of naming data. The most popular decade for this name was the 2010s, when 54 babies were registered. While Effy is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Effy by Decade
How has Effy 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.
Effy + Last Name Combinations
How many people share a full name with Effy as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Effy
Other first names starting with E with a similar number of bearers.
Effy: Questions and Answers
How many people in the U.S. are named Effy?
We estimate approximately 82 people named Effy 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 4,179,931 Americans share this first name.
Is Effy a common name?
Effy is classified as "Very Rare" and is more popular than 61.6% of all first names in the SSA database. A total of 83 births have been registered with this name since 1880.
When was Effy most popular?
Effy reached peak popularity in 2023, when 14 babies were given this name. The average age of a living person named Effy is approximately 8 years old, reflecting when the name was most commonly given.
Is Effy a female name?
Effy is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Effy Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Effy Smith, Effy Johnson, Effy 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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