How Many People Are Named Eilis?
An estimated 250 people in the United States have the first name Eilis. It is almost exclusively a female name. The average bearer is 17 years old, and Eilis peaked in popularity in 2018 with 20 births that year.
Below you will find a full statistical profile of Eilis 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 Eilis paired with any surname.
Estimated Living Americans
250
About 1 in 1,371,017 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
17
years old
Peak Year
2018
20 births
Total Registered
254
since 1880
Gender Distribution for Eilis
Eilis is almost exclusively a female name. Out of 254 total births registered, 100.0% were female.
Eilis as a female name
Ranked #15,826 in 2023
5 female births in 2023
Peak: 2018 (20 births)
Eilis: Popularity Over Time
SSA records for Eilis span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2010s, when 86 babies were registered. While Eilis is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Eilis by Decade
How has Eilis 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.
Eilis + Last Name Combinations
How many people share a full name with Eilis as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Eilis
Other first names starting with E with a similar number of bearers.
Eilis: Questions and Answers
How many people in the U.S. are named Eilis?
We estimate approximately 250 people named Eilis 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 1,371,017 Americans share this first name.
Is Eilis a common name?
Eilis is classified as "Very Rare" and is more popular than 77.1% of all first names in the SSA database. A total of 254 births have been registered with this name since 1880.
When was Eilis most popular?
Eilis reached peak popularity in 2018, when 20 babies were given this name. The average age of a living person named Eilis is approximately 17 years old, reflecting when the name was most commonly given.
Is Eilis a female name?
Eilis is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Eilis Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Eilis Smith, Eilis Johnson, Eilis 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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