How Many People Are Named Justus?
An estimated 9,090 people in the United States have the first name Justus. It is predominantly male (91.8%). The average bearer is 22 years old, and Justus peaked in popularity in 2002 with 336 births that year.
Below you will find a full statistical profile of Justus 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 Justus paired with any surname.
Estimated Living Americans
9,090
About 1 in 37,707 people in the U.S.
Rarity
Rare
Predicted Gender
Male
91.8% confidence
Average Age
22
years old
Peak Year
2002
336 births
Total Registered
9,870
since 1880
Gender Distribution for Justus
Justus is predominantly male (91.8%), though 811 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Justus as a male name
Ranked #1,807 in 2024
90 male births in 2024
Peak: 2007 (300 births)
Justus as a female name
Ranked #10,620 in 2024
9 female births in 2024
Peak: 1995 (43 births)
Justus: Popularity Over Time
SSA records for Justus span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 2000s, when 3,053 babies were registered. Justus has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Justus by Decade
How has Justus 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.
Justus by State
Birth registrations for Justus span all 41 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in South Dakota, Massachusetts, West Virginia. On average, about 140 Justuss were registered per state.
Justus + Last Name Combinations
How many people share a full name with Justus as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Justus
Other first names starting with J with a similar number of bearers.
Justus: Questions and Answers
How many people in the U.S. are named Justus?
We estimate approximately 9,090 people named Justus 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 37,707 Americans share this first name.
Is Justus a common name?
Justus is classified as "Rare" and is more popular than 97.6% of all first names in the SSA database. A total of 9,870 births have been registered with this name since 1880.
When was Justus most popular?
Justus reached peak popularity in 2002, when 336 babies were given this name. The average age of a living person named Justus is approximately 22 years old, reflecting when the name was most commonly given.
Is Justus a male name?
Justus is predominantly male. 91.8% of people with this name are male. See the gender breakdown above for full details.
How many Justus Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Justus Smith, Justus Johnson, Justus 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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