How Many People Are Named Isais?
An estimated 198 people in the United States have the first name Isais. It is almost exclusively a male name. The average bearer is 20 years old, and Isais peaked in popularity in 2009 with 14 births that year.
Below you will find a full statistical profile of Isais 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 Isais paired with any surname.
Estimated Living Americans
198
About 1 in 1,731,083 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
20
years old
Peak Year
2009
14 births
Total Registered
201
since 1880
Gender Distribution for Isais
Isais is almost exclusively a male name. Out of 201 total births registered, 100.0% were male.
Isais as a male name
Ranked #12,980 in 2024
5 male births in 2024
Peak: 2009 (14 births)
Isais: Popularity Over Time
SSA records for Isais span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 67 babies were registered. Isais has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Isais by Decade
How has Isais 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.
Isais by State
Isais + Last Name Combinations
How many people share a full name with Isais as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Isais
Other first names starting with I with a similar number of bearers.
Isais: Questions and Answers
How many people in the U.S. are named Isais?
We estimate approximately 198 people named Isais 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 1,731,083 Americans share this first name.
Is Isais a common name?
Isais is classified as "Very Rare" and is more popular than 74.1% of all first names in the SSA database. A total of 201 births have been registered with this name since 1880.
When was Isais most popular?
Isais reached peak popularity in 2009, when 14 babies were given this name. The average age of a living person named Isais is approximately 20 years old, reflecting when the name was most commonly given.
Is Isais a male name?
Isais is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Isais Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Isais Smith, Isais Johnson, Isais 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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