How Many People Are Named Isobella?
An estimated 235 people in the United States have the first name Isobella. It is almost exclusively a female name. The average bearer is 16 years old, and Isobella peaked in popularity in 2009 with 22 births that year.
Below you will find a full statistical profile of Isobella 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 Isobella paired with any surname.
Estimated Living Americans
235
About 1 in 1,458,529 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
16
years old
Peak Year
2009
22 births
Total Registered
238
since 1880
Gender Distribution for Isobella
Isobella is almost exclusively a female name. Out of 238 total births registered, 100.0% were female.
Isobella as a female name
Ranked #16,184 in 2024
5 female births in 2024
Peak: 2009 (22 births)
Isobella: Popularity Over Time
SSA records for Isobella span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2000s, when 108 babies were registered. Isobella has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Isobella by Decade
How has Isobella 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.
Isobella + Last Name Combinations
How many people share a full name with Isobella as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Isobella
Other first names starting with I with a similar number of bearers.
Isobella: Questions and Answers
How many people in the U.S. are named Isobella?
We estimate approximately 235 people named Isobella 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 1,458,529 Americans share this first name.
Is Isobella a common name?
Isobella is classified as "Very Rare" and is more popular than 76.3% of all first names in the SSA database. A total of 238 births have been registered with this name since 1880.
When was Isobella most popular?
Isobella reached peak popularity in 2009, when 22 babies were given this name. The average age of a living person named Isobella is approximately 16 years old, reflecting when the name was most commonly given.
Is Isobella a female name?
Isobella is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Isobella Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Isobella Smith, Isobella Johnson, Isobella 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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