How Many People Are Named Petronia?
An estimated 21 people in the United States have the first name Petronia. It is almost exclusively a female name. The average bearer is 52 years old, and Petronia peaked in popularity in 1984 with 10 births that year.
Below you will find a full statistical profile of Petronia 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 Petronia paired with any surname.
Key Insights
- Petronia is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
21
About 1 in 16,321,635 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
52
years old
Peak Year
1984
10 births
Total Registered
43
since 1880
Gender Distribution for Petronia
Petronia is almost exclusively a female name. Out of 43 total births registered, 100.0% were female.
Petronia as a female name
Ranked #6,635 in 1984
10 female births in 1984
Peak: 1984 (10 births)
Petronia: Popularity Over Time
SSA records for Petronia span from the 1910s to the 1980s, covering 5 decades of naming data. The most popular decade for this name was the 1980s, when 16 babies were registered. Petronia remains highly popular today, with recent registration numbers near its historical peak.
Petronia by Decade
How has Petronia 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.
Petronia + Last Name Combinations
How many people share a full name with Petronia as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Petronia
Other first names starting with P with a similar number of bearers.
Petronia: Questions and Answers
How many people in the U.S. are named Petronia?
We estimate approximately 21 people named Petronia 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 16,321,635 Americans share this first name.
Is Petronia a common name?
Petronia is classified as "Very Rare" and is more popular than 40.8% of all first names in the SSA database. A total of 43 births have been registered with this name since 1880.
When was Petronia most popular?
Petronia reached peak popularity in 1984, when 10 babies were given this name. The average age of a living person named Petronia is approximately 52 years old, reflecting when the name was most commonly given.
Is Petronia a female name?
Petronia is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Petronia Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Petronia Smith, Petronia Johnson, Petronia 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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