How Many People Are Named Onica?
An estimated 248 people in the United States have the first name Onica. It is almost exclusively a female name. The average bearer is 33 years old, and Onica peaked in popularity in 1998 with 13 births that year.
Below you will find a full statistical profile of Onica 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 Onica paired with any surname.
Estimated Living Americans
248
About 1 in 1,382,074 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
33
years old
Peak Year
1998
13 births
Total Registered
259
since 1880
Gender Distribution for Onica
Onica is almost exclusively a female name. Out of 259 total births registered, 100.0% were female.
Onica as a female name
Ranked #11,693 in 2014
9 female births in 2014
Peak: 1998 (13 births)
Onica: Popularity Over Time
SSA records for Onica span from the 1970s to the 2010s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 81 babies were registered. While Onica is less common than at its peak in the 2000s, it remains a well-established name with steady registrations.
Onica by Decade
How has Onica 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.
Onica by State
Onica + Last Name Combinations
How many people share a full name with Onica as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Onica
Other first names starting with O with a similar number of bearers.
Onica: Questions and Answers
How many people in the U.S. are named Onica?
We estimate approximately 248 people named Onica 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 1,382,074 Americans share this first name.
Is Onica a common name?
Onica is classified as "Very Rare" and is more popular than 77% of all first names in the SSA database. A total of 259 births have been registered with this name since 1880.
When was Onica most popular?
Onica reached peak popularity in 1998, when 13 babies were given this name. The average age of a living person named Onica is approximately 33 years old, reflecting when the name was most commonly given.
Is Onica a female name?
Onica is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Onica Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Onica Smith, Onica Johnson, Onica 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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