How Many People Are Named Riku?
An estimated 465 people in the United States have the first name Riku. It is almost exclusively a male name. The average bearer is 14 years old, and Riku peaked in popularity in 2024 with 24 births that year.
Below you will find a full statistical profile of Riku 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 Riku paired with any surname.
Estimated Living Americans
465
About 1 in 737,106 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
14
years old
Peak Year
2024
24 births
Total Registered
470
since 1880
Gender Distribution for Riku
Riku is almost exclusively a male name. Out of 470 total births registered, 100.0% were male.
Riku as a male name
Ranked #4,391 in 2024
24 male births in 2024
Peak: 2024 (24 births)
Riku in the 2020 Census
The 2020 Census recorded 382 people with the first name Riku, which placed it at #24,979 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, Riku was recorded as predominantly male. Out of 382 people with this name in that snapshot, 94.0% were male and 6.0% were female. That is less heavily male than the long-run SSA birth pattern on this page, which sits at 100.0% male.
Census Count
382
people with this name
Census Rank
#24,979
among Census first names
Frequency Rate
0.13
per 100,000 people
Recorded Race and Hispanic Origin in the 2020 Census
In the 2020 Census, the first name Riku was most commonly recorded among people who identified as Asian and Pacific Islander (67.54%). The next largest recorded groups were White (14.14%) and Two or More Races (10.99%).
These percentages describe the people who had the first name Riku 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 Riku.
| Group | Share | Count |
|---|---|---|
| Asian and Pacific Islander | 67.54% | 258 |
| White | 14.14% | 54 |
| Two or More Races | 10.99% | 42 |
| Hispanic | 6.02% | 23 |
| Black | 1.31% | 5 |
Riku: Popularity Over Time
SSA records for Riku span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2010s, when 180 babies were registered. While Riku is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Riku by Decade
How has Riku 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.
Riku by State
Riku + Last Name Combinations
How many people share a full name with Riku as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Riku
Other first names starting with R with a similar number of bearers.
Riku: Questions and Answers
How many people in the U.S. are named Riku?
We estimate approximately 465 people named Riku 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 737,106 Americans share this first name.
Is Riku a common name?
Riku is classified as "Very Rare" and is more popular than 83.9% of all first names in the SSA database. A total of 470 births have been registered with this name since 1880.
When was Riku most popular?
Riku reached peak popularity in 2024, when 24 babies were given this name. The average age of a living person named Riku is approximately 14 years old, reflecting when the name was most commonly given.
How common was Riku in the 2020 Census?
The 2020 Census recorded 382 people with the first name Riku. That placed it at #24,979 in the published Census first-name tables, or 0.13 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 Riku 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 Riku?
In the 2020 Census snapshot, Riku was recorded as predominantly male. The published split was 94.0% male and 6.0% female.
What does the Census say about the background of people named Riku?
In the 2020 Census, the first name Riku was most commonly recorded among people who identified as Asian and Pacific Islander (67.54%). The next largest recorded groups were White (14.14%) and Two or More Races (10.99%). 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 Riku a male name?
Riku is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
Why can Riku 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. Riku peaked in 2024, and the average living bearer is about 14 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Riku Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Riku Smith, Riku Johnson, Riku 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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