How Many People Are Named Isai?
An estimated 7,084 people in the United States have the first name Isai. It is predominantly male (99.5%). The average bearer is 19 years old, and Isai peaked in popularity in 2007 with 333 births that year.
Below you will find a full statistical profile of Isai 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 Isai paired with any surname.
Estimated Living Americans
7,084
About 1 in 48,384 people in the U.S.
Rarity
Rare
Predicted Gender
Male
99.5% confidence
Average Age
19
years old
Peak Year
2007
333 births
Total Registered
7,185
since 1880
Gender Distribution for Isai
Isai is almost exclusively a male name. Out of 7,185 total births registered, 99.5% were male.
Isai as a male name
Ranked #1,066 in 2024
204 male births in 2024
Peak: 2007 (333 births)
Isai as a female name
Ranked #12,629 in 2024
7 female births in 2024
Peak: 2024 (7 births)
Isai: Popularity Over Time
SSA records for Isai span from the 1960s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 2000s, when 2,633 babies were registered. While Isai is less common than at its peak in the 2000s, it remains a well-established name with steady registrations.
Isai by Decade
How has Isai 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.
Isai by State
Birth registrations for Isai span all 26 states and territories in the SSA database. The highest counts are in California, Texas, Arizona. The lowest are in Michigan, Indiana, Arkansas. On average, about 214 Isais were registered per state.
Isai + Last Name Combinations
How many people share a full name with Isai as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Isai
Other first names starting with I with a similar number of bearers.
Isai: Questions and Answers
How many people in the U.S. are named Isai?
We estimate approximately 7,084 people named Isai 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 48,384 Americans share this first name.
Is Isai a common name?
Isai is classified as "Rare" and is more popular than 97.2% of all first names in the SSA database. A total of 7,185 births have been registered with this name since 1880.
When was Isai most popular?
Isai reached peak popularity in 2007, when 333 babies were given this name. The average age of a living person named Isai is approximately 19 years old, reflecting when the name was most commonly given.
Is Isai a male name?
Isai is predominantly male. 99.5% of people with this name are male. See the gender breakdown above for full details.
How many Isai Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Isai Smith, Isai Johnson, Isai 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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