How Many People Are Named Rilya?
An estimated 60 people in the United States have the first name Rilya. It is almost exclusively a female name. The average bearer is 18 years old, and Rilya peaked in popularity in 2004 with 9 births that year.
Below you will find a full statistical profile of Rilya 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 Rilya paired with any surname.
Key Insights
- Rilya is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
60
About 1 in 5,712,572 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
18
years old
Peak Year
2004
9 births
Total Registered
61
since 1880
Gender Distribution for Rilya
Rilya is almost exclusively a female name. Out of 61 total births registered, 100.0% were female.
Rilya as a female name
Ranked #16,030 in 2015
6 female births in 2015
Peak: 2004 (9 births)
Rilya: Popularity Over Time
SSA records for Rilya span from the 2000s to the 2010s, covering 2 decades of naming data. The most popular decade for this name was the 2000s, when 32 babies were registered. Rilya remains highly popular today, with recent registration numbers near its historical peak.
Rilya by Decade
How has Rilya 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.
Rilya + Last Name Combinations
How many people share a full name with Rilya as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Rilya
Other first names starting with R with a similar number of bearers.
Rilya: Questions and Answers
How many people in the U.S. are named Rilya?
We estimate approximately 60 people named Rilya 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 5,712,572 Americans share this first name.
Is Rilya a common name?
Rilya is classified as "Very Rare" and is more popular than 57.1% of all first names in the SSA database. A total of 61 births have been registered with this name since 1880.
When was Rilya most popular?
Rilya reached peak popularity in 2004, when 9 babies were given this name. The average age of a living person named Rilya is approximately 18 years old, reflecting when the name was most commonly given.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Rilya 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.
Is Rilya a female name?
Rilya is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
Why can Rilya 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. Rilya peaked in 2004, and the average living bearer is about 18 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Rilya Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Rilya Smith, Rilya Johnson, Rilya 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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