How Many People Are Named Mieko?
An estimated 162 people in the United States have the first name Mieko. It is predominantly female (98.4%). The average bearer is 31 years old, and Mieko peaked in popularity in 1924 with 14 births that year.
Below you will find a full statistical profile of Mieko as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. You can also check how many people share the full name Mieko paired with any surname.
Estimated Living Americans
162
About 1 in 2,115,768 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
98.4% confidence
Average Age
31
years old
Peak Year
1924
14 births
Total Registered
315
since 1880
Gender Distribution for Mieko
Mieko is predominantly female (98.4%), though 5 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Mieko as a male name
Ranked #13,391 in 2015
5 male births in 2015
Peak: 2015 (5 births)
Mieko as a female name
Ranked #16,926 in 2022
5 female births in 2022
Peak: 1924 (14 births)
Mieko in the 2020 Census
The 2020 Census recorded 1,140 people with the first name Mieko, which placed it at #11,322 in the published first-name tables. This is a snapshot of people who already had the name in 2020. The estimated living count elsewhere on this page is different: it is a current estimate built from SSA birth records and age-based survival rates, so the two figures are not expected to match exactly.
Read this section as a snapshot of people who already had the name in 2020. The SSA charts elsewhere on this page are still the better way to see how the name rose, fell, or shifted across generations.
Gender in the 2020 Census
In the 2020 Census, Mieko was recorded as predominantly female. Out of 1,140 people with this name in that snapshot, 2.0% were male and 98.0% were female. That is very close to the long-run birth pattern in SSA records, where the name is female 98.4% of the time.
Census Count
1,140
people with this name
Census Rank
#11,322
among Census first names
Frequency Rate
0.38
per 100,000 people
Recorded Race and Hispanic Origin in the 2020 Census
In the 2020 Census, the first name Mieko was most commonly recorded among people who identified as Asian and Pacific Islander (79.56%). The next largest recorded groups were Two or More Races (9.21%) and Black (5.96%).
These percentages describe the people who had the first name Mieko in the 2020 Census. They do not tell you the deeper meaning or origin of the name itself.
2020 Census demographic breakdown
Each row shows a recorded Census category for people with the first name Mieko.
| Group | Share | Count |
|---|---|---|
| Asian and Pacific Islander | 79.56% | 907 |
| Two or More Races | 9.21% | 105 |
| Black | 5.96% | 68 |
| Hispanic | 2.89% | 33 |
| White | 2.02% | 23 |
| American Indian and Alaska Native | 0.35% | 4 |
Mieko: Popularity Over Time
SSA records for Mieko span from the 1910s to the 2020s, covering 9 decades of naming data. The most popular decade for this name was the 1920s, when 105 babies were registered. Mieko has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Mieko by Decade
How has Mieko 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.
Mieko by State
Mieko + Last Name Combinations
How many people share a full name with Mieko as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Mieko
Other first names starting with M with a similar number of bearers.
Mieko: Questions and Answers
How many people in the U.S. are named Mieko?
We estimate approximately 162 people named Mieko 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 2,115,768 Americans share this first name.
Is Mieko a common name?
Mieko is classified as "Very Rare" and is more popular than 71.4% of all first names in the SSA database. A total of 315 births have been registered with this name since 1880.
When was Mieko most popular?
Mieko reached peak popularity in 1924, when 14 babies were given this name. The average age of a living person named Mieko is approximately 31 years old, reflecting when the name was most commonly given.
How common was Mieko in the 2020 Census?
The 2020 Census recorded 1,140 people with the first name Mieko. That placed it at #11,322 in the published Census first-name tables, or 0.38 people per 100,000.
Why is the Census count different from the living estimate?
Because they measure different things. The Census number is a count of people with the name in 2020. The living estimate is a current model based on SSA birth records and survival rates, so it aims to estimate how many people with the name are alive now.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Mieko was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
What does the Census say about the gender split for Mieko?
In the 2020 Census snapshot, Mieko was recorded as predominantly female. The published split was 2.0% male and 98.0% female.
What does the Census say about the background of people named Mieko?
In the 2020 Census, the first name Mieko was most commonly recorded among people who identified as Asian and Pacific Islander (79.56%). The next largest recorded groups were Two or More Races (9.21%) and Black (5.96%). These percentages describe the people who had the name in the 2020 Census, not the deeper meaning or origin of the name itself.
Why can the Census sex total and race total differ slightly?
The Census published separate first-name tables for sex and for race and Hispanic origin. Those totals can differ slightly for the same name, so the page uses them as two related snapshots rather than treating them as perfectly interchangeable counts.
Does every first name have Census demographic data?
No. The public Census first-name tables only include names that met the Bureau's publication rules. That means some names on this site will have SSA history but no published Census demographic snapshot.
Is Mieko a female name?
Mieko is predominantly female. 98.4% of people with this name are female. See the gender breakdown above for full details.
Why can Mieko have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Mieko peaked in 1924, and the average living bearer is about 31 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Mieko Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Mieko Smith, Mieko Johnson, Mieko 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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