Ysidro
A masculine Spanish name of Greek origin meaning "giver of gifts".
Name Census estimates that about 809 living Americans carry the first name Ysidro. The name is used almost exclusively for boys. The average person named Ysidro today is around 53 years old, and the year with the single highest number of Ysidro births was 1922 (36 babies).
This page is the full Name Census profile for Ysidro. Below you will find a gender breakdown showing how the name splits between male and female registrations, a year-by-year popularity chart stretching back to 1880, decade-level totals, the top US states for this name, its meaning and etymology, and a set of frequently asked questions with data-backed answers.
People living today
809
~ 1 in 423,677 Americans
Peak year
1922
36 babies that year
Average age
53
years old
2020 SSA rank
#11,972
Tracked since 1906
Census
Ysidro in the 2020 Census
The 2020 Census recorded 1,002 people with the first name Ysidro, which placed it at #12,418 in the published first-name tables. This is a snapshot of people who already had the name at the time of the Census.
The SSA sections elsewhere on this page answer a different question: how often parents gave the name to babies over time. The "people living today" figure on this page is different again: it is a current estimate built from SSA birth records and age-based survival rates, so the two numbers are not expected to match exactly.
2020 Census rank
#12,418
National first-name rank
People counted
1.0K
1,002 in the published race/origin table
Per 100,000
0.3
People with this name in 2020
Largest reported group
Hispanic or Latino
95.7% of people with this name
Demographics
Ancestry and ethnicity for Ysidro
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Ysidro is Hispanic at 95.7%. The next largest groups are White (2.5%) and American Indian/Alaska Native (1.1%). These figures describe the people who had the name in 2020, not any inherent property of the name itself.
The bar chart below shows how people with the first name Ysidro described their own race and ethnicity on the 2020 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given name, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown so the breakdown is easy to read across every published category. Because the 2020 Census first-name file also includes raw headcounts for each group, Name Census can show those alongside the percentages in the legend and hover tooltip.
Keep in mind that these are self-reported numbers. A first name does not determine a person's race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the name Ysidro at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino95.7% · 959
- White2.5% · 25
- American Indian and Alaska Native1.1% · 11
- Black or African American0.3% · 3
- Asian and Pacific Islander0.2% · 2
- Two or more races0.2% · 2
Popularity
Ysidro: popularity over time
The SSA tracks Ysidro from the 1900s through to the 2020s, spanning 13 decades of birth certificate data. The biggest single decade for the name was the 1920s, with 218 total registrations. Usage has dropped considerably from its 1920s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Ysidro by decade
The table below breaks the full SSA timeline into ten-year windows. Each row shows how many male and female babies were given the name Ysidro during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Ysidros live
The SSA's state-level files cover 4 states and territories. Texas, California, Arizona recorded the most babies named Ysidro, while New Mexico, Arizona, California recorded the fewest. The average across all reporting states is about 199 registrations each.
Origin
Meaning and history of Ysidro
The name Ysidro is of Spanish origin, derived from the Latin name Isidorus, which itself comes from the Greek name Isidoros, meaning "gift of Isis". The name Isis refers to the ancient Egyptian goddess of fertility and motherhood.
The name Isidorus was commonly used in the early Christian era, particularly among Hispano-Romans living in the Iberian Peninsula during the 6th and 7th centuries. One of the most famous bearers of this name was Saint Isidore of Seville, a renowned scholar and Archbishop of Seville, who lived from around 560 to 636 AD. He is known for his encyclopedic work, the Etymologiae, which was an influential compendium of knowledge in the Middle Ages.
Another notable figure with this name was Isidore of Miletus, a 6th-century Byzantine architect and mathematician, best known for designing the Hagia Sophia, the famous church in Constantinople (modern-day Istanbul). He lived from around 490 to 580 AD.
In the 9th century, the name Isidorus was anglicized to Isidore and became more common in parts of Western Europe. One example is Saint Isidore the Farmer, a Spanish day laborer and patron saint of farmers, who lived from around 1070 to 1130 AD.
The spelling variation Ysidro emerged in the medieval period, particularly in the Iberian Peninsula. One of the earliest recorded examples is Ysidro de Sevilla, a 13th-century Spanish prelate and Archbishop of Santiago de Compostela, who lived from around 1205 to 1278 AD.
Another notable figure was Ysidro Arredondo, a 16th-century Spanish conquistador and explorer, who participated in the conquest of Mexico under Hernán Cortés. He lived from around 1490 to 1555 AD.
People
Ysidro + last name combinations
How many people share a full name with Ysidro as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with Y
Other first names starting with Y with a similar number of bearers.
FAQ
Ysidro: questions and answers
How many people in the U.S. are named Ysidro?
Name Census puts the figure at roughly 809 living Americans. We arrive at this by taking every SSA birth registration for Ysidro going back to 1880 and adjusting each cohort for expected survival using CDC actuarial life tables. The result is an age-weighted living-bearer count, not a raw birth total. That works out to about 1 in 423,677 US residents.
Is Ysidro a common name?
We classify Ysidro as "Very Rare". It ranks above 88.6% of all first names in the SSA dataset by living bearers. Across the full history of the data, 1,412 babies have been registered with this name.
When was Ysidro most popular?
The single biggest year for Ysidro was 1922, when 36 babies received the name. The fact that the average living Ysidro is about 53 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
How common was Ysidro in the 2020 Census?
The published 2020 Census first-name tables recorded 1,002 people with the name Ysidro, or 0.33 per 100,000 residents. That placed it at #12,418 in the national Census ranking for first names.
Why is the Census count different from the living estimate?
Because they measure different things. The Census figure is a count of people who had the name Ysidro in 2020. The living estimate aims to answer a current question instead: how many people with the name are alive today, based on SSA birth records and age-based survival rates. Since one number is a 2020 snapshot and the other is a present-day estimate, they are not expected to be identical.
What does the Census say about the gender split for Ysidro?
In the 2020 Census sex table, Ysidro appears almost entirely male. Of the 1,001 people counted with this name, 99.0% were male and only a very small share were female. The Census view is a snapshot of people living with the name in 2020, while the SSA section above tracks births across time.
What does the Census say about the background of people named Ysidro?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Ysidro is Hispanic at 95.7%. The next largest groups are White (2.5%) and American Indian/Alaska Native (1.1%). These figures describe the people who had the name in 2020, not any inherent property of the name itself. The percentages in the chart above come from self-reported race and Hispanic-origin responses in the 2020 Census.
Which group reports the name Ysidro most often in the Census?
Hispanic is the largest reported group for people named Ysidro in the 2020 Census, accounting for 95.7% (959 people in the published table).
Why can the Census sex total and race total differ slightly?
The Census Bureau published separate 2020 tables for sex and for race/Hispanic origin, and the released figures can differ slightly because of privacy protection in the public files. That is why this page treats the gender section and the race/origin section as two related snapshots instead of forcing them into one identical total.
Does every first name have Census demographic data?
No. The public Census first-name release only includes names that met the Bureau's publication rules, so many rarer names in the SSA files have no Census demographic snapshot. When that happens, the SSA trend, gender history, and state sections still appear, but the 2020 Census demographic sections are omitted.
What does the SSA popularity chart show?
The chart tracks births, not the number of people alive with the name today. Each point shows how many babies were given the name Ysidro in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Ysidro a male name?
Yes, 100.0% of people registered as Ysidro in the SSA data are male. You can see the full per-sex comparison in the gender distribution section above, which includes the latest year rank, birth count, and peak year for each sex.
Is Ysidro still being used today?
Yes. The SSA still recorded Ysidro in 2024, and the page above shows its latest-year rank where available. A name can be well past its peak and still remain in steady use, especially if it built up a large population over earlier decades.
Why can a name have a lot of living bearers even if it is not trendy now?
Because living-bearer counts and current baby-name popularity measure different things. A name like Ysidro can build up a very large population over many decades, even if fewer parents are choosing it now than they did at its peak.
Where does this data come from?
First-name figures come from the Social Security Administration's national baby name files, which cover every name on a birth certificate from 1880 to 2024. Living-bearer estimates layer in CDC actuarial life tables broken out by sex to account for mortality. The population baseline (342,754,338) is the Census Bureau's latest national estimate. You can read the full calculation on our methodology page.
How many people have the name Ysidro?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.