How Many People Are Named Kaius?
An estimated 1,780 people in the United States have the first name Kaius. It is almost exclusively a male name. The average bearer is 7 years old, and Kaius peaked in popularity in 2020 with 201 births that year.
Below you will find a full statistical profile of Kaius 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 Kaius paired with any surname.
Key Insights
- Kaius is a modern name. With an average bearer age of just 7, it has gained most of its popularity in recent years.
Estimated Living Americans
1,780
About 1 in 192,559 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
7
years old
Peak Year
2020
201 births
Total Registered
1,793
since 1880
Gender Distribution for Kaius
Kaius is almost exclusively a male name. Out of 1,793 total births registered, 100.0% were male.
Kaius as a male name
Ranked #1,134 in 2024
186 male births in 2024
Peak: 2020 (201 births)
Kaius: Popularity Over Time
SSA records for Kaius span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2020s, when 932 babies were registered. Kaius remains highly popular today, with recent registration numbers near its historical peak.
Kaius by Decade
How has Kaius 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.
Kaius by State
Birth registrations for Kaius span all 31 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in Nevada, New Jersey, Nebraska. On average, about 31 Kaiuss were registered per state.
Kaius + Last Name Combinations
How many people share a full name with Kaius as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kaius
Other first names starting with K with a similar number of bearers.
Kaius: Questions and Answers
How many people in the U.S. are named Kaius?
We estimate approximately 1,780 people named Kaius 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 192,559 Americans share this first name.
Is Kaius a common name?
Kaius is classified as "Rare" and is more popular than 93.2% of all first names in the SSA database. A total of 1,793 births have been registered with this name since 1880.
When was Kaius most popular?
Kaius reached peak popularity in 2020, when 201 babies were given this name. The average age of a living person named Kaius is approximately 7 years old, reflecting when the name was most commonly given.
Is Kaius a male name?
Kaius is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Kaius Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kaius Smith, Kaius Johnson, Kaius 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 0 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau estimate. Full methodology.
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