How Many People Are Named Ilyssa?
An estimated 761 people in the United States have the first name Ilyssa. It is almost exclusively a female name. The average bearer is 27 years old, and Ilyssa peaked in popularity in 2004 with 41 births that year.
Below you will find a full statistical profile of Ilyssa 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 Ilyssa paired with any surname.
Estimated Living Americans
761
About 1 in 450,400 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
27
years old
Peak Year
2004
41 births
Total Registered
786
since 1880
Gender Distribution for Ilyssa
Ilyssa is almost exclusively a female name. Out of 786 total births registered, 100.0% were female.
Ilyssa as a female name
Ranked #14,154 in 2021
6 female births in 2021
Peak: 2004 (41 births)
Ilyssa: Popularity Over Time
SSA records for Ilyssa span from the 1960s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 2000s, when 248 babies were registered. Ilyssa has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Ilyssa by Decade
How has Ilyssa 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.
Ilyssa by State
Birth registrations for Ilyssa span all 3 states and territories in the SSA database. The highest counts are in New York, California, Texas. The lowest are in Texas, California, New York. On average, about 50 Ilyssas were registered per state.
Ilyssa + Last Name Combinations
How many people share a full name with Ilyssa as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Ilyssa
Other first names starting with I with a similar number of bearers.
Ilyssa: Questions and Answers
How many people in the U.S. are named Ilyssa?
We estimate approximately 761 people named Ilyssa 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 450,400 Americans share this first name.
Is Ilyssa a common name?
Ilyssa is classified as "Very Rare" and is more popular than 88.2% of all first names in the SSA database. A total of 786 births have been registered with this name since 1880.
When was Ilyssa most popular?
Ilyssa reached peak popularity in 2004, when 41 babies were given this name. The average age of a living person named Ilyssa is approximately 27 years old, reflecting when the name was most commonly given.
Is Ilyssa a female name?
Ilyssa is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Ilyssa Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Ilyssa Smith, Ilyssa Johnson, Ilyssa 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