How Many People Are Named Illa?
An estimated 489 people in the United States have the first name Illa. It is almost exclusively a female name. The average bearer is 52 years old, and Illa peaked in popularity in 1926 with 58 births that year.
Below you will find a full statistical profile of Illa 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 Illa paired with any surname.
Estimated Living Americans
489
About 1 in 700,929 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
52
years old
Peak Year
1926
58 births
Total Registered
1,790
since 1880
Gender Distribution for Illa
Illa is almost exclusively a female name. Out of 1,790 total births registered, 100.0% were female.
Illa as a female name
Ranked #11,453 in 2024
8 female births in 2024
Peak: 1926 (58 births)
Illa: Popularity Over Time
SSA records for Illa span from the 1890s to the 2020s, covering 12 decades of naming data. The most popular decade for this name was the 1920s, when 450 babies were registered. Illa has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Illa by Decade
How has Illa 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.
Illa by State
Birth registrations for Illa span all 7 states and territories in the SSA database. The highest counts are in Texas, Tennessee, Kentucky. The lowest are in Georgia, Nebraska, Oklahoma. On average, about 16 Illas were registered per state.
Illa + Last Name Combinations
How many people share a full name with Illa as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Illa
Other first names starting with I with a similar number of bearers.
Illa: Questions and Answers
How many people in the U.S. are named Illa?
We estimate approximately 489 people named Illa 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 700,929 Americans share this first name.
Is Illa a common name?
Illa is classified as "Very Rare" and is more popular than 84.3% of all first names in the SSA database. A total of 1,790 births have been registered with this name since 1880.
When was Illa most popular?
Illa reached peak popularity in 1926, when 58 babies were given this name. The average age of a living person named Illa is approximately 52 years old, reflecting when the name was most commonly given.
Is Illa a female name?
Illa is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Illa Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Illa Smith, Illa Johnson, Illa 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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