How Many People Are Named Kilian?
An estimated 2,512 people in the United States have the first name Kilian. It is predominantly male (98.9%). The average bearer is 12 years old, and Kilian peaked in popularity in 2023 with 212 births that year.
Below you will find a full statistical profile of Kilian 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 Kilian paired with any surname.
Key Insights
- Kilian is a modern name. With an average bearer age of just 12, it has gained most of its popularity in recent years.
Estimated Living Americans
2,512
About 1 in 136,447 people in the U.S.
Rarity
Rare
Predicted Gender
Male
98.9% confidence
Average Age
12
years old
Peak Year
2023
212 births
Total Registered
2,539
since 1880
Gender Distribution for Kilian
Kilian is predominantly male (98.9%), though 27 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Kilian as a male name
Ranked #1,050 in 2024
209 male births in 2024
Peak: 2023 (212 births)
Kilian as a female name
Ranked #14,737 in 2019
6 female births in 2019
Peak: 2011 (6 births)
Kilian: Popularity Over Time
SSA records for Kilian span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2010s, when 1,023 babies were registered. Kilian remains highly popular today, with recent registration numbers near its historical peak.
Kilian by Decade
How has Kilian 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.
Kilian by State
Birth registrations for Kilian span all 21 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in Missouri, Michigan, New Jersey. On average, about 56 Kilians were registered per state.
Kilian + Last Name Combinations
How many people share a full name with Kilian as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kilian
Other first names starting with K with a similar number of bearers.
Kilian: Questions and Answers
How many people in the U.S. are named Kilian?
We estimate approximately 2,512 people named Kilian 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 136,447 Americans share this first name.
Is Kilian a common name?
Kilian is classified as "Rare" and is more popular than 94.6% of all first names in the SSA database. A total of 2,539 births have been registered with this name since 1880.
When was Kilian most popular?
Kilian reached peak popularity in 2023, when 212 babies were given this name. The average age of a living person named Kilian is approximately 12 years old, reflecting when the name was most commonly given.
Is Kilian a male name?
Kilian is predominantly male. 98.9% of people with this name are male. See the gender breakdown above for full details.
How many Kilian Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kilian Smith, Kilian Johnson, Kilian 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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