How Many People Are Named Isidra?
An estimated 330 people in the United States have the first name Isidra. It is almost exclusively a female name. The average bearer is 48 years old, and Isidra peaked in popularity in 1921 with 18 births that year.
Below you will find a full statistical profile of Isidra 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 Isidra paired with any surname.
Estimated Living Americans
330
About 1 in 1,038,650 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
48
years old
Peak Year
1921
18 births
Total Registered
613
since 1880
Gender Distribution for Isidra
Isidra is almost exclusively a female name. Out of 613 total births registered, 100.0% were female.
Isidra as a female name
Ranked #14,112 in 2024
6 female births in 2024
Peak: 1921 (18 births)
Isidra: Popularity Over Time
SSA records for Isidra span from the 1900s to the 2020s, covering 13 decades of naming data. The most popular decade for this name was the 1920s, when 114 babies were registered. Isidra has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Isidra by Decade
How has Isidra 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.
Isidra by State
Isidra + Last Name Combinations
How many people share a full name with Isidra as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Isidra
Other first names starting with I with a similar number of bearers.
Isidra: Questions and Answers
How many people in the U.S. are named Isidra?
We estimate approximately 330 people named Isidra 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 1,038,650 Americans share this first name.
Is Isidra a common name?
Isidra is classified as "Very Rare" and is more popular than 80.3% of all first names in the SSA database. A total of 613 births have been registered with this name since 1880.
When was Isidra most popular?
Isidra reached peak popularity in 1921, when 18 babies were given this name. The average age of a living person named Isidra is approximately 48 years old, reflecting when the name was most commonly given.
Is Isidra a female name?
Isidra is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Isidra Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Isidra Smith, Isidra Johnson, Isidra 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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