How Many People Are Named Ilo?
An estimated 90 people in the United States have the first name Ilo. It is predominantly female (92.7%). The average bearer is 36 years old, and Ilo peaked in popularity in 1921 with 33 births that year.
Below you will find a full statistical profile of Ilo 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 Ilo paired with any surname.
Key Insights
- Ilo is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
90
About 1 in 3,808,382 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
92.7% confidence
Average Age
36
years old
Peak Year
1921
33 births
Total Registered
768
since 1880
Gender Distribution for Ilo
Ilo is predominantly female (92.7%), though 56 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Ilo as a male name
Ranked #6,967 in 2024
12 male births in 2024
Peak: 2024 (12 births)
Ilo as a female name
Ranked #12,624 in 2024
7 female births in 2024
Peak: 1921 (33 births)
Ilo: Popularity Over Time
SSA records for Ilo span from the 1880s to the 2020s, covering 9 decades of naming data. The most popular decade for this name was the 1920s, when 212 babies were registered. Ilo has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Ilo by Decade
How has Ilo 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.
Ilo by State
Birth registrations for Ilo span all 4 states and territories in the SSA database. The highest counts are in Ohio, Iowa, Indiana. The lowest are in Minnesota, Indiana, Iowa. On average, about 28 Ilos were registered per state.
Ilo + Last Name Combinations
How many people share a full name with Ilo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Ilo
Other first names starting with I with a similar number of bearers.
Ilo: Questions and Answers
How many people in the U.S. are named Ilo?
We estimate approximately 90 people named Ilo 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 3,808,382 Americans share this first name.
Is Ilo a common name?
Ilo is classified as "Very Rare" and is more popular than 63% of all first names in the SSA database. A total of 768 births have been registered with this name since 1880.
When was Ilo most popular?
Ilo reached peak popularity in 1921, when 33 babies were given this name. The average age of a living person named Ilo is approximately 36 years old, reflecting when the name was most commonly given.
Is Ilo a female name?
Ilo is predominantly female. 92.7% of people with this name are female. See the gender breakdown above for full details.
How many Ilo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Ilo Smith, Ilo Johnson, Ilo 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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