How Many People Are Named Aizen?
An estimated 1,722 people in the United States have the first name Aizen. It is almost exclusively a male name. The average bearer is 7 years old, and Aizen peaked in popularity in 2024 with 223 births that year.
Below you will find a full statistical profile of Aizen 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 Aizen paired with any surname.
Key Insights
- Aizen is a modern name. With an average bearer age of just 7, it has gained most of its popularity in recent years.
Estimated Living Americans
1,722
About 1 in 199,044 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
7
years old
Peak Year
2024
223 births
Total Registered
1,734
since 1880
Gender Distribution for Aizen
Aizen is almost exclusively a male name. Out of 1,734 total births registered, 100.0% were male.
Aizen as a male name
Ranked #1,003 in 2024
223 male births in 2024
Peak: 2024 (223 births)
Aizen: Popularity Over Time
SSA records for Aizen span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2020s, when 887 babies were registered. Aizen remains highly popular today, with recent registration numbers near its historical peak.
Aizen by Decade
How has Aizen 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.
Aizen by State
Birth registrations for Aizen span all 22 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in Utah, Rhode Island, Indiana. On average, about 44 Aizens were registered per state.
Aizen + Last Name Combinations
How many people share a full name with Aizen as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Aizen
Other first names starting with A with a similar number of bearers.
Aizen: Questions and Answers
How many people in the U.S. are named Aizen?
We estimate approximately 1,722 people named Aizen 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 199,044 Americans share this first name.
Is Aizen a common name?
Aizen is classified as "Rare" and is more popular than 93.1% of all first names in the SSA database. A total of 1,734 births have been registered with this name since 1880.
When was Aizen most popular?
Aizen reached peak popularity in 2024, when 223 babies were given this name. The average age of a living person named Aizen is approximately 7 years old, reflecting when the name was most commonly given.
Is Aizen a male name?
Aizen is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Aizen Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Aizen Smith, Aizen Johnson, Aizen 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