How Many People Are Named Justo?
An estimated 1,311 people in the United States have the first name Justo. It is almost exclusively a male name. The average bearer is 43 years old, and Justo peaked in popularity in 1986 with 31 births that year.
Below you will find a full statistical profile of Justo 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 Justo paired with any surname.
Estimated Living Americans
1,311
About 1 in 261,445 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
43
years old
Peak Year
1986
31 births
Total Registered
1,729
since 1880
Gender Distribution for Justo
Justo is almost exclusively a male name. Out of 1,729 total births registered, 100.0% were male.
Justo as a male name
Ranked #8,614 in 2024
9 male births in 2024
Peak: 1986 (31 births)
Justo: Popularity Over Time
SSA records for Justo span from the 1890s to the 2020s, covering 14 decades of naming data. The most popular decade for this name was the 1980s, when 248 babies were registered. Justo has declined significantly from its peak in the 1980s. Recent registrations are a fraction of what they were at the name's height.
Justo by Decade
How has Justo 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.
Justo by State
Birth registrations for Justo span all 4 states and territories in the SSA database. The highest counts are in Texas, California, New York. The lowest are in Florida, New York, California. On average, about 178 Justos were registered per state.
Justo + Last Name Combinations
How many people share a full name with Justo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Justo
Other first names starting with J with a similar number of bearers.
Justo: Questions and Answers
How many people in the U.S. are named Justo?
We estimate approximately 1,311 people named Justo 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 261,445 Americans share this first name.
Is Justo a common name?
Justo is classified as "Rare" and is more popular than 91.7% of all first names in the SSA database. A total of 1,729 births have been registered with this name since 1880.
When was Justo most popular?
Justo reached peak popularity in 1986, when 31 babies were given this name. The average age of a living person named Justo is approximately 43 years old, reflecting when the name was most commonly given.
Is Justo a male name?
Justo is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Justo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Justo Smith, Justo Johnson, Justo 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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