How Many People Are Named Onie?
An estimated 189 people in the United States have the first name Onie. It is used for both genders, with 86.6% female. The average bearer is 81 years old, and Onie peaked in popularity in 1918 with 70 births that year.
Below you will find a full statistical profile of Onie 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 Onie paired with any surname.
Key Insights
- With an average bearer age of 81, Onie is a vintage name most associated with earlier generations. Most living bearers were born before 1955.
Estimated Living Americans
189
About 1 in 1,813,515 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
86.6% confidence
Average Age
81
years old
Peak Year
1918
70 births
Total Registered
2,063
since 1880
Gender Distribution for Onie
Onie is predominantly female (86.6%), though 277 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Onie as a male name
Ranked #3,779 in 1955
6 male births in 1955
Peak: 1920 (20 births)
Onie as a female name
Ranked #13,285 in 1997
6 female births in 1997
Peak: 1918 (64 births)
Onie in the 2020 Census
The 2020 Census recorded 379 people with the first name Onie, which placed it at #25,135 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, Onie was recorded as predominantly female. Out of 379 people with this name in that snapshot, 28.2% were male and 71.8% were female. That is less heavily female than the long-run SSA birth pattern on this page, which sits at 86.6% female.
Census Count
379
people with this name
Census Rank
#25,135
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 Onie was most commonly recorded among people who identified as White (51.99%). The next largest recorded groups were Black (35.28%) and Hispanic (3.98%).
These percentages describe the people who had the first name Onie 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 Onie.
| Group | Share | Count |
|---|---|---|
| White | 51.99% | 196 |
| Black | 35.28% | 133 |
| Hispanic | 3.98% | 15 |
| Two or More Races | 3.71% | 14 |
| Asian and Pacific Islander | 2.92% | 11 |
| American Indian and Alaska Native | 2.12% | 8 |
The Census published separate sex and race/origin tables for first names, so their total counts can differ slightly for the same name. That is why the race section focuses on the demographic mix rather than repeating a second headline count.
Onie: Popularity Over Time
SSA records for Onie span from the 1880s to the 1990s, covering 12 decades of naming data. The most popular decade for this name was the 1910s, when 488 babies were registered. Onie has declined significantly from its peak in the 1910s. Recent registrations are a fraction of what they were at the name's height.
Onie by Decade
How has Onie 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.
Onie by State
Birth registrations for Onie span all 11 states and territories in the SSA database. The highest counts are in Texas, Mississippi, Georgia. The lowest are in Virginia, Florida, South Carolina. On average, about 27 Onies were registered per state.
Onie + Last Name Combinations
How many people share a full name with Onie as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Onie
Other first names starting with O with a similar number of bearers.
Onie: Questions and Answers
How many people in the U.S. are named Onie?
We estimate approximately 189 people named Onie 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 1,813,515 Americans share this first name.
Is Onie a common name?
Onie is classified as "Very Rare" and is more popular than 73.4% of all first names in the SSA database. A total of 2,063 births have been registered with this name since 1880.
When was Onie most popular?
Onie reached peak popularity in 1918, when 70 babies were given this name. The average age of a living person named Onie is approximately 81 years old, reflecting when the name was most commonly given.
How common was Onie in the 2020 Census?
The 2020 Census recorded 379 people with the first name Onie. That placed it at #25,135 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 Onie 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 Onie?
In the 2020 Census snapshot, Onie was recorded as predominantly female. The published split was 28.2% male and 71.8% female.
What does the Census say about the background of people named Onie?
In the 2020 Census, the first name Onie was most commonly recorded among people who identified as White (51.99%). The next largest recorded groups were Black (35.28%) and Hispanic (3.98%). 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 Onie a female name?
Onie is predominantly female. 86.6% of people with this name are female. See the gender breakdown above for full details.
Why can Onie 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. Onie peaked in 1918, and the average living bearer is about 81 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Onie Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Onie Smith, Onie Johnson, Onie 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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