How Many People Are Named Cai?
An estimated 1,845 people in the United States have the first name Cai. It is used for both genders, with 74.2% male. The average bearer is 12 years old, and Cai peaked in popularity in 2022 with 131 births that year.
Below you will find a full statistical profile of Cai 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 Cai paired with any surname.
Key Insights
- Cai 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
1,845
About 1 in 185,775 people in the U.S.
Rarity
Rare
Predicted Gender
Male
74.2% confidence
Average Age
12
years old
Peak Year
2022
131 births
Total Registered
1,862
since 1880
Gender Distribution for Cai
Cai is a genuinely unisex name, used for both males (74.2%) and females (25.8%). Out of 1,862 total births registered, 1,381 were male and 481 were female.
Cai as a male name
Ranked #1,902 in 2024
83 male births in 2024
Peak: 2022 (108 births)
Cai as a female name
Ranked #6,415 in 2024
18 female births in 2024
Peak: 2020 (38 births)
Cai: Popularity Over Time
SSA records for Cai span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2010s, when 852 babies were registered. While Cai is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Cai by Decade
How has Cai 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.
Cai by State
Birth registrations for Cai span all 18 states and territories in the SSA database. The highest counts are in Texas, Florida, California. The lowest are in Ohio, Michigan, Maryland. On average, about 28 Cais were registered per state.
Cai + Last Name Combinations
How many people share a full name with Cai as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cai
Other first names starting with C with a similar number of bearers.
Cai: Questions and Answers
How many people in the U.S. are named Cai?
We estimate approximately 1,845 people named Cai 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 185,775 Americans share this first name.
Is Cai a common name?
Cai is classified as "Rare" and is more popular than 93.4% of all first names in the SSA database. A total of 1,862 births have been registered with this name since 1880.
When was Cai most popular?
Cai reached peak popularity in 2022, when 131 babies were given this name. The average age of a living person named Cai is approximately 12 years old, reflecting when the name was most commonly given.
Is Cai a male name?
Cai is predominantly male. 74.2% of people with this name are male. See the gender breakdown above for full details.
How many Cai Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cai Smith, Cai Johnson, Cai 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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