How Many People Are Named Oneika?
An estimated 87 people in the United States have the first name Oneika. It is almost exclusively a female name. The average bearer is 46 years old, and Oneika peaked in popularity in 1974 with 10 births that year.
Below you will find a full statistical profile of Oneika 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 Oneika paired with any surname.
Key Insights
- Oneika is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
87
About 1 in 3,939,705 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
46
years old
Peak Year
1974
10 births
Total Registered
94
since 1880
Gender Distribution for Oneika
Oneika is almost exclusively a female name. Out of 94 total births registered, 100.0% were female.
Oneika as a female name
Ranked #15,204 in 1996
5 female births in 1996
Peak: 1974 (10 births)
Oneika: Popularity Over Time
SSA records for Oneika span from the 1970s to the 1990s, covering 3 decades of naming data. The most popular decade for this name was the 1970s, when 63 babies were registered. Oneika has declined significantly from its peak in the 1970s. Recent registrations are a fraction of what they were at the name's height.
Oneika by Decade
How has Oneika 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.
Oneika + Last Name Combinations
How many people share a full name with Oneika as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Oneika
Other first names starting with O with a similar number of bearers.
Oneika: Questions and Answers
How many people in the U.S. are named Oneika?
We estimate approximately 87 people named Oneika 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 3,939,705 Americans share this first name.
Is Oneika a common name?
Oneika is classified as "Very Rare" and is more popular than 62.5% of all first names in the SSA database. A total of 94 births have been registered with this name since 1880.
When was Oneika most popular?
Oneika reached peak popularity in 1974, when 10 babies were given this name. The average age of a living person named Oneika is approximately 46 years old, reflecting when the name was most commonly given.
Is Oneika a female name?
Oneika is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Oneika Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Oneika Smith, Oneika Johnson, Oneika 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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