How Many People Are Named Caileb?
An estimated 234 people in the United States have the first name Caileb. It is almost exclusively a male name. The average bearer is 18 years old, and Caileb peaked in popularity in 2009 with 18 births that year.
Below you will find a full statistical profile of Caileb 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 Caileb paired with any surname.
Estimated Living Americans
234
About 1 in 1,464,762 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
18
years old
Peak Year
2009
18 births
Total Registered
237
since 1880
Gender Distribution for Caileb
Caileb is almost exclusively a male name. Out of 237 total births registered, 100.0% were male.
Caileb as a male name
Ranked #12,332 in 2020
5 male births in 2020
Peak: 2009 (18 births)
Caileb: Popularity Over Time
SSA records for Caileb span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2000s, when 122 babies were registered. Caileb has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Caileb by Decade
How has Caileb 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.
Caileb by State
Caileb + Last Name Combinations
How many people share a full name with Caileb as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Caileb
Other first names starting with C with a similar number of bearers.
Caileb: Questions and Answers
How many people in the U.S. are named Caileb?
We estimate approximately 234 people named Caileb 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 1,464,762 Americans share this first name.
Is Caileb a common name?
Caileb is classified as "Very Rare" and is more popular than 76.2% of all first names in the SSA database. A total of 237 births have been registered with this name since 1880.
When was Caileb most popular?
Caileb reached peak popularity in 2009, when 18 babies were given this name. The average age of a living person named Caileb is approximately 18 years old, reflecting when the name was most commonly given.
Is Caileb a male name?
Caileb is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Caileb Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Caileb Smith, Caileb Johnson, Caileb 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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