How Many People Are Named Kastiel?
An estimated 202 people in the United States have the first name Kastiel. It is almost exclusively a male name. The average bearer is 8 years old, and Kastiel peaked in popularity in 2021 with 29 births that year.
Below you will find a full statistical profile of Kastiel 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 Kastiel paired with any surname.
Estimated Living Americans
202
About 1 in 1,696,804 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
8
years old
Peak Year
2021
29 births
Total Registered
203
since 1880
Gender Distribution for Kastiel
Kastiel is almost exclusively a male name. Out of 203 total births registered, 100.0% were male.
Kastiel as a male name
Ranked #6,626 in 2024
13 male births in 2024
Peak: 2021 (29 births)
Kastiel: Popularity Over Time
SSA records for Kastiel span from the 2010s to the 2020s, covering 2 decades of naming data. The most popular decade for this name was the 2010s, when 118 babies were registered. While Kastiel is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Kastiel by Decade
How has Kastiel 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.
Kastiel by State
Kastiel + Last Name Combinations
How many people share a full name with Kastiel as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kastiel
Other first names starting with K with a similar number of bearers.
Kastiel: Questions and Answers
How many people in the U.S. are named Kastiel?
We estimate approximately 202 people named Kastiel 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 1,696,804 Americans share this first name.
Is Kastiel a common name?
Kastiel is classified as "Very Rare" and is more popular than 74.4% of all first names in the SSA database. A total of 203 births have been registered with this name since 1880.
When was Kastiel most popular?
Kastiel reached peak popularity in 2021, when 29 babies were given this name. The average age of a living person named Kastiel is approximately 8 years old, reflecting when the name was most commonly given.
Is Kastiel a male name?
Kastiel is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Kastiel Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kastiel Smith, Kastiel Johnson, Kastiel 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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