How Many People Are Named Illiana?
An estimated 1,985 people in the United States have the first name Illiana. It is almost exclusively a female name. The average bearer is 17 years old, and Illiana peaked in popularity in 2011 with 89 births that year.
Below you will find a full statistical profile of Illiana 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 Illiana paired with any surname.
Key Insights
- Illiana is a modern name. With an average bearer age of just 17, it has gained most of its popularity in recent years.
Estimated Living Americans
1,985
About 1 in 172,672 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
17
years old
Peak Year
2011
89 births
Total Registered
2,021
since 1880
Gender Distribution for Illiana
Illiana is almost exclusively a female name. Out of 2,021 total births registered, 100.0% were female.
Illiana as a female name
Ranked #2,309 in 2024
80 female births in 2024
Peak: 2011 (89 births)
Illiana: Popularity Over Time
SSA records for Illiana span from the 1950s to the 2020s, covering 8 decades of naming data. The most popular decade for this name was the 2010s, when 693 babies were registered. While Illiana is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Illiana by Decade
How has Illiana 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.
Illiana by State
Birth registrations for Illiana span all 9 states and territories in the SSA database. The highest counts are in Texas, California, Florida. The lowest are in Oregon, Massachusetts, New York. On average, about 94 Illianas were registered per state.
Illiana + Last Name Combinations
How many people share a full name with Illiana as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Illiana
Other first names starting with I with a similar number of bearers.
Illiana: Questions and Answers
How many people in the U.S. are named Illiana?
We estimate approximately 1,985 people named Illiana 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 172,672 Americans share this first name.
Is Illiana a common name?
Illiana is classified as "Rare" and is more popular than 93.7% of all first names in the SSA database. A total of 2,021 births have been registered with this name since 1880.
When was Illiana most popular?
Illiana reached peak popularity in 2011, when 89 babies were given this name. The average age of a living person named Illiana is approximately 17 years old, reflecting when the name was most commonly given.
Is Illiana a female name?
Illiana is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Illiana Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Illiana Smith, Illiana Johnson, Illiana 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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