How Many People Are Named Cailey?
An estimated 3,771 people in the United States have the first name Cailey. It is almost exclusively a female name. The average bearer is 22 years old, and Cailey peaked in popularity in 1999 with 198 births that year.
Below you will find a full statistical profile of Cailey 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 Cailey paired with any surname.
Estimated Living Americans
3,771
About 1 in 90,892 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
22
years old
Peak Year
1999
198 births
Total Registered
3,841
since 1880
Gender Distribution for Cailey
Cailey is almost exclusively a female name. Out of 3,841 total births registered, 100.0% were female.
Cailey as a female name
Ranked #5,311 in 2024
24 female births in 2024
Peak: 1999 (198 births)
Cailey: Popularity Over Time
SSA records for Cailey span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 1,648 babies were registered. Cailey has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Cailey by Decade
How has Cailey 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.
Cailey by State
Birth registrations for Cailey span all 31 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in South Carolina, Kentucky, Arizona. On average, about 65 Caileys were registered per state.
Cailey + Last Name Combinations
How many people share a full name with Cailey as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cailey
Other first names starting with C with a similar number of bearers.
Cailey: Questions and Answers
How many people in the U.S. are named Cailey?
We estimate approximately 3,771 people named Cailey 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 90,892 Americans share this first name.
Is Cailey a common name?
Cailey is classified as "Rare" and is more popular than 95.8% of all first names in the SSA database. A total of 3,841 births have been registered with this name since 1880.
When was Cailey most popular?
Cailey reached peak popularity in 1999, when 198 babies were given this name. The average age of a living person named Cailey is approximately 22 years old, reflecting when the name was most commonly given.
Is Cailey a female name?
Cailey is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Cailey Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cailey Smith, Cailey Johnson, Cailey 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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