How Many People Are Named Json?
An estimated 294 people in the United States have the first name Json. It is almost exclusively a male name. The average bearer is 29 years old, and Json peaked in popularity in 1996 with 49 births that year.
Below you will find a full statistical profile of Json 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 Json paired with any surname.
Estimated Living Americans
294
About 1 in 1,165,831 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
29
years old
Peak Year
1996
49 births
Total Registered
302
since 1880
Gender Distribution for Json
Json is almost exclusively a male name. Out of 302 total births registered, 100.0% were male.
Json as a male name
Ranked #13,151 in 2024
5 male births in 2024
Peak: 1996 (49 births)
Json: Popularity Over Time
SSA records for Json span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 1990s, when 104 babies were registered. Json has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Json by Decade
How has Json 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.
Json by State
Json + Last Name Combinations
How many people share a full name with Json as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Json
Other first names starting with J with a similar number of bearers.
Json: Questions and Answers
How many people in the U.S. are named Json?
We estimate approximately 294 people named Json 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 1,165,831 Americans share this first name.
Is Json a common name?
Json is classified as "Very Rare" and is more popular than 79% of all first names in the SSA database. A total of 302 births have been registered with this name since 1880.
When was Json most popular?
Json reached peak popularity in 1996, when 49 babies were given this name. The average age of a living person named Json is approximately 29 years old, reflecting when the name was most commonly given.
Is Json a male name?
Json is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Json Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Json Smith, Json Johnson, Json 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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