How Many People Are Named Isabeau?
An estimated 462 people in the United States have the first name Isabeau. It is almost exclusively a female name. The average bearer is 19 years old, and Isabeau peaked in popularity in 2013 with 25 births that year.
Below you will find a full statistical profile of Isabeau 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 Isabeau paired with any surname.
Estimated Living Americans
462
About 1 in 741,893 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
19
years old
Peak Year
2013
25 births
Total Registered
470
since 1880
Gender Distribution for Isabeau
Isabeau is almost exclusively a female name. Out of 470 total births registered, 100.0% were female.
Isabeau as a female name
Ranked #11,464 in 2024
8 female births in 2024
Peak: 2013 (25 births)
Isabeau: Popularity Over Time
SSA records for Isabeau span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2010s, when 169 babies were registered. Isabeau has declined significantly from its peak in the 2010s. Recent registrations are a fraction of what they were at the name's height.
Isabeau by Decade
How has Isabeau 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.
Isabeau by State
Isabeau + Last Name Combinations
How many people share a full name with Isabeau as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Isabeau
Other first names starting with I with a similar number of bearers.
Isabeau: Questions and Answers
How many people in the U.S. are named Isabeau?
We estimate approximately 462 people named Isabeau 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 741,893 Americans share this first name.
Is Isabeau a common name?
Isabeau is classified as "Very Rare" and is more popular than 83.8% of all first names in the SSA database. A total of 470 births have been registered with this name since 1880.
When was Isabeau most popular?
Isabeau reached peak popularity in 2013, when 25 babies were given this name. The average age of a living person named Isabeau is approximately 19 years old, reflecting when the name was most commonly given.
Is Isabeau a female name?
Isabeau is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Isabeau Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Isabeau Smith, Isabeau Johnson, Isabeau 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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