How Many People Are Named Kastin?
An estimated 121 people in the United States have the first name Kastin. It is almost exclusively a male name. The average bearer is 11 years old, and Kastin peaked in popularity in 2015 with 12 births that year.
Below you will find a full statistical profile of Kastin as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. You can also check how many people share the full name Kastin paired with any surname.
Estimated Living Americans
121
About 1 in 2,832,680 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
11
years old
Peak Year
2015
12 births
Total Registered
122
since 1880
Gender Distribution for Kastin
Kastin is almost exclusively a male name. Out of 122 total births registered, 100.0% were male.
Kastin as a male name
Ranked #10,242 in 2023
7 male births in 2023
Peak: 2015 (12 births)
Kastin: Popularity Over Time
SSA records for Kastin span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2010s, when 76 babies were registered. While Kastin is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Kastin by Decade
How has Kastin 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.
Kastin + Last Name Combinations
How many people share a full name with Kastin as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kastin
Other first names starting with K with a similar number of bearers.
Kastin: Questions and Answers
How many people in the U.S. are named Kastin?
We estimate approximately 121 people named Kastin 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 2,832,680 Americans share this first name.
Is Kastin a common name?
Kastin is classified as "Very Rare" and is more popular than 67.3% of all first names in the SSA database. A total of 122 births have been registered with this name since 1880.
When was Kastin most popular?
Kastin reached peak popularity in 2015, when 12 babies were given this name. The average age of a living person named Kastin is approximately 11 years old, reflecting when the name was most commonly given.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Kastin was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
Is Kastin a male name?
Kastin is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
Why can Kastin have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Kastin peaked in 2015, and the average living bearer is about 11 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Kastin Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kastin Smith, Kastin Johnson, Kastin 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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