How Many People Are Named Michio?
An estimated 12 people in the United States have the first name Michio. It is almost exclusively a male name. The average bearer is 64 years old, and Michio peaked in popularity in 1932 with 8 births that year.
Below you will find a full statistical profile of Michio 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 Michio paired with any surname.
Key Insights
- Michio is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
12
About 1 in 28,562,862 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
64
years old
Peak Year
1932
8 births
Total Registered
90
since 1880
Gender Distribution for Michio
Michio is almost exclusively a male name. Out of 90 total births registered, 100.0% were male.
Michio as a male name
Ranked #13,662 in 2011
5 male births in 2011
Peak: 1932 (8 births)
Michio: Popularity Over Time
SSA records for Michio span from the 1910s to the 2010s, covering 4 decades of naming data. The most popular decade for this name was the 1920s, when 46 babies were registered. Michio has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Michio by Decade
How has Michio 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.
Michio by State
Michio + Last Name Combinations
How many people share a full name with Michio as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Michio
Other first names starting with M with a similar number of bearers.
Michio: Questions and Answers
How many people in the U.S. are named Michio?
We estimate approximately 12 people named Michio 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 28,562,862 Americans share this first name.
Is Michio a common name?
Michio is classified as "Very Rare" and is more popular than 32.3% of all first names in the SSA database. A total of 90 births have been registered with this name since 1880.
When was Michio most popular?
Michio reached peak popularity in 1932, when 8 babies were given this name. The average age of a living person named Michio is approximately 64 years old, reflecting when the name was most commonly given.
Is Michio a male name?
Michio is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Michio Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Michio Smith, Michio Johnson, Michio 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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