Guillermo Deltoro
There are approximately 1 people named Guillermo Deltoro living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Guillermo with Census Bureau frequency data for the surname Deltoro. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
1
1 in 342,754,338
Named Guillermo
28K
Alive today
Named Deltoro
8.4K
Alive today
US population
343M
Denominator
Estimated living: 28K
Rarity: Uncommon
Gender: Male
Peak year: 1998
Average age: 34
Estimated bearers: 8.4K
Rarity: Rare
Census rank: #4,862
Per 100K: 2.46
Top ancestry: Hispanic (92.6%)
First name trend
Guillermo: popularity over time
Year-by-year SSA birth registrations for the first name Guillermo. The peak year was 1998 with 693 births. The average person named Guillermo today is 34 years old.
Babies born per year
Ethnicity
Ancestry of the Deltoro surname
Self-reported race and ethnicity breakdown for people with the surname Deltoro, from the 2010 US Census Bureau. The largest group is Hispanic at 92.6%.
- Hispanic or Latino92.6%
- White6.4%
- Black or African American0.4%
- Asian and Pacific Islander0.3%
- Two or more races0.3%
- American Indian and Alaska Native0.1%
Methodology
How we calculated this
The first name Guillermo has a living-bearer frequency of 0.0083% of the US population, based on 28,333 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Deltoro appears at a rate of 2.46 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0025%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Guillermo Deltoro. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Guillermo
Related
Other people with the surname Deltoro
FAQ
Guillermo Deltoro: questions and answers
How many people are named Guillermo Deltoro?
We estimate approximately 1 people in the United States share the full name Guillermo Deltoro. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0083%) with the surname frequency (2.46 per 100K) against the current US population.
How rare is the name Guillermo Deltoro?
We classify Guillermo Deltoro as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Guillermo a male or female name?
Guillermo is predominantly male. Out of 31,881 total SSA registrations, 99.8% were male and 0.2% were female. See the full Guillermo profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.