How Many People Are Named Casi?
An estimated 1,019 people in the United States have the first name Casi. It is almost exclusively a female name. The average bearer is 39 years old, and Casi peaked in popularity in 1989 with 56 births that year.
Below you will find a full statistical profile of Casi 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 Casi paired with any surname.
Estimated Living Americans
1,019
About 1 in 336,363 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
39
years old
Peak Year
1989
56 births
Total Registered
1,080
since 1880
Gender Distribution for Casi
Casi is almost exclusively a female name. Out of 1,080 total births registered, 100.0% were female.
Casi as a female name
Ranked #15,763 in 2022
5 female births in 2022
Peak: 1989 (56 births)
Casi: Popularity Over Time
SSA records for Casi span from the 1960s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 1980s, when 444 babies were registered. Casi has declined significantly from its peak in the 1980s. Recent registrations are a fraction of what they were at the name's height.
Casi by Decade
How has Casi 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.
Casi by State
Birth registrations for Casi span all 6 states and territories in the SSA database. The highest counts are in Texas, Florida, Oklahoma. The lowest are in Utah, Ohio, Georgia. On average, about 18 Casis were registered per state.
Casi + Last Name Combinations
How many people share a full name with Casi as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Casi
Other first names starting with C with a similar number of bearers.
Casi: Questions and Answers
How many people in the U.S. are named Casi?
We estimate approximately 1,019 people named Casi 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 336,363 Americans share this first name.
Is Casi a common name?
Casi is classified as "Rare" and is more popular than 90.2% of all first names in the SSA database. A total of 1,080 births have been registered with this name since 1880.
When was Casi most popular?
Casi reached peak popularity in 1989, when 56 babies were given this name. The average age of a living person named Casi is approximately 39 years old, reflecting when the name was most commonly given.
Is Casi a female name?
Casi is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Casi Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Casi Smith, Casi Johnson, Casi 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.
Search for a full name combination
How Many of Me