How Many People Are Named Aloysius?
An estimated 1,504 people in the United States have the first name Aloysius. It is almost exclusively a male name. The average bearer is 53 years old, and Aloysius peaked in popularity in 1916 with 199 births that year.
Below you will find a full statistical profile of Aloysius 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 Aloysius paired with any surname.
Estimated Living Americans
1,504
About 1 in 227,895 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
53
years old
Peak Year
1916
199 births
Total Registered
5,704
since 1880
Gender Distribution for Aloysius
Aloysius is almost exclusively a male name. Out of 5,704 total births registered, 100.0% were male.
Aloysius as a male name
Ranked #4,699 in 2024
21 male births in 2024
Peak: 1916 (199 births)
Aloysius: Popularity Over Time
SSA records for Aloysius span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 1920s, when 1,477 babies were registered. Aloysius has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Aloysius by Decade
How has Aloysius 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.
Aloysius by State
Birth registrations for Aloysius span all 20 states and territories in the SSA database. The highest counts are in Pennsylvania, Illinois, Michigan. The lowest are in Nebraska, North Dakota, Maryland. On average, about 134 Aloysiuss were registered per state.
Aloysius + Last Name Combinations
How many people share a full name with Aloysius as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Aloysius
Other first names starting with A with a similar number of bearers.
Aloysius: Questions and Answers
How many people in the U.S. are named Aloysius?
We estimate approximately 1,504 people named Aloysius 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 227,895 Americans share this first name.
Is Aloysius a common name?
Aloysius is classified as "Rare" and is more popular than 92.4% of all first names in the SSA database. A total of 5,704 births have been registered with this name since 1880.
When was Aloysius most popular?
Aloysius reached peak popularity in 1916, when 199 babies were given this name. The average age of a living person named Aloysius is approximately 53 years old, reflecting when the name was most commonly given.
Is Aloysius a male name?
Aloysius is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Aloysius Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Aloysius Smith, Aloysius Johnson, Aloysius 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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