How Many People Are Named Casia?
An estimated 226 people in the United States have the first name Casia. It is almost exclusively a female name. The average bearer is 25 years old, and Casia peaked in popularity in 2008 with 17 births that year.
Below you will find a full statistical profile of Casia 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 Casia paired with any surname.
Estimated Living Americans
226
About 1 in 1,516,612 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
25
years old
Peak Year
2008
17 births
Total Registered
231
since 1880
Gender Distribution for Casia
Casia is almost exclusively a female name. Out of 231 total births registered, 100.0% were female.
Casia as a female name
Ranked #13,816 in 2021
6 female births in 2021
Peak: 2008 (17 births)
Casia: Popularity Over Time
SSA records for Casia span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 93 babies were registered. Casia has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Casia by Decade
How has Casia 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.
Casia + Last Name Combinations
How many people share a full name with Casia as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Casia
Other first names starting with C with a similar number of bearers.
Casia: Questions and Answers
How many people in the U.S. are named Casia?
We estimate approximately 226 people named Casia 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 1,516,612 Americans share this first name.
Is Casia a common name?
Casia is classified as "Very Rare" and is more popular than 75.8% of all first names in the SSA database. A total of 231 births have been registered with this name since 1880.
When was Casia most popular?
Casia reached peak popularity in 2008, when 17 babies were given this name. The average age of a living person named Casia is approximately 25 years old, reflecting when the name was most commonly given.
Is Casia a female name?
Casia is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Casia Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Casia Smith, Casia Johnson, Casia 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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