How Many People Are Named Isidro?
An estimated 6,793 people in the United States have the first name Isidro. It is almost exclusively a male name. The average bearer is 36 years old, and Isidro peaked in popularity in 2000 with 160 births that year.
Below you will find a full statistical profile of Isidro 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 Isidro paired with any surname.
Estimated Living Americans
6,793
About 1 in 50,457 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
36
years old
Peak Year
2000
160 births
Total Registered
8,120
since 1880
Gender Distribution for Isidro
Isidro is almost exclusively a male name. Out of 8,120 total births registered, 100.0% were male.
Isidro as a male name
Ranked #1,779 in 2024
92 male births in 2024
Peak: 2000 (160 births)
Isidro: Popularity Over Time
SSA records for Isidro span from the 1880s to the 2020s, covering 14 decades of naming data. The most popular decade for this name was the 2000s, when 1,368 babies were registered. While Isidro is less common than at its peak in the 2000s, it remains a well-established name with steady registrations.
Isidro by Decade
How has Isidro 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.
Isidro by State
Birth registrations for Isidro span all 16 states and territories in the SSA database. The highest counts are in Texas, California, New Mexico. The lowest are in Wisconsin, Nevada, New Jersey. On average, about 378 Isidros were registered per state.
Isidro + Last Name Combinations
How many people share a full name with Isidro as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Isidro
Other first names starting with I with a similar number of bearers.
Isidro: Questions and Answers
How many people in the U.S. are named Isidro?
We estimate approximately 6,793 people named Isidro 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 50,457 Americans share this first name.
Is Isidro a common name?
Isidro is classified as "Rare" and is more popular than 97.1% of all first names in the SSA database. A total of 8,120 births have been registered with this name since 1880.
When was Isidro most popular?
Isidro reached peak popularity in 2000, when 160 babies were given this name. The average age of a living person named Isidro is approximately 36 years old, reflecting when the name was most commonly given.
Is Isidro a male name?
Isidro is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Isidro Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Isidro Smith, Isidro Johnson, Isidro 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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