How Many People Are Named Cecilio?
An estimated 1,812 people in the United States have the first name Cecilio. It is almost exclusively a male name. The average bearer is 43 years old, and Cecilio peaked in popularity in 1998 with 39 births that year.
Below you will find a full statistical profile of Cecilio 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 Cecilio paired with any surname.
Estimated Living Americans
1,812
About 1 in 189,158 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
43
years old
Peak Year
1998
39 births
Total Registered
2,402
since 1880
Gender Distribution for Cecilio
Cecilio is almost exclusively a male name. Out of 2,402 total births registered, 100.0% were male.
Cecilio as a male name
Ranked #5,935 in 2024
15 male births in 2024
Peak: 1998 (39 births)
Cecilio: Popularity Over Time
SSA records for Cecilio span from the 1900s to the 2020s, covering 13 decades of naming data. The most popular decade for this name was the 1990s, when 322 babies were registered. Cecilio has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Cecilio by Decade
How has Cecilio 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.
Cecilio by State
Birth registrations for Cecilio span all 5 states and territories in the SSA database. The highest counts are in Texas, California, New York. The lowest are in Illinois, New Mexico, New York. On average, about 265 Cecilios were registered per state.
Cecilio + Last Name Combinations
How many people share a full name with Cecilio as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cecilio
Other first names starting with C with a similar number of bearers.
Cecilio: Questions and Answers
How many people in the U.S. are named Cecilio?
We estimate approximately 1,812 people named Cecilio 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 189,158 Americans share this first name.
Is Cecilio a common name?
Cecilio is classified as "Rare" and is more popular than 93.3% of all first names in the SSA database. A total of 2,402 births have been registered with this name since 1880.
When was Cecilio most popular?
Cecilio reached peak popularity in 1998, when 39 babies were given this name. The average age of a living person named Cecilio is approximately 43 years old, reflecting when the name was most commonly given.
Is Cecilio a male name?
Cecilio is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Cecilio Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cecilio Smith, Cecilio Johnson, Cecilio 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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