How Many People Are Named Petronilla?
An estimated 2 people in the United States have the first name Petronilla. It is almost exclusively a female name. The average bearer is 110 years old, and Petronilla peaked in popularity in 1927 with 7 births that year.
Below you will find a full statistical profile of Petronilla 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 Petronilla paired with any surname.
Key Insights
- With an average bearer age of 110, Petronilla is a vintage name most associated with earlier generations. Most living bearers were born before 1926.
- Petronilla is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
2
About 1 in 171,377,169 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
110
years old
Peak Year
1927
7 births
Total Registered
57
since 1880
Gender Distribution for Petronilla
Petronilla is almost exclusively a female name. Out of 57 total births registered, 100.0% were female.
Petronilla as a female name
Ranked #4,112 in 1935
6 female births in 1935
Peak: 1927 (7 births)
Petronilla: Popularity Over Time
SSA records for Petronilla span from the 1900s to the 1930s, covering 4 decades of naming data. The most popular decade for this name was the 1920s, when 24 babies were registered. While Petronilla is less common than at its peak in the 1920s, it remains a well-established name with steady registrations.
Petronilla by Decade
How has Petronilla 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.
Petronilla + Last Name Combinations
How many people share a full name with Petronilla as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Petronilla
Other first names starting with P with a similar number of bearers.
Petronilla: Questions and Answers
How many people in the U.S. are named Petronilla?
We estimate approximately 2 people named Petronilla 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 171,377,169 Americans share this first name.
Is Petronilla a common name?
Petronilla is classified as "Very Rare" and is more popular than 4.3% of all first names in the SSA database. A total of 57 births have been registered with this name since 1880.
When was Petronilla most popular?
Petronilla reached peak popularity in 1927, when 7 babies were given this name. The average age of a living person named Petronilla is approximately 110 years old, reflecting when the name was most commonly given.
Is Petronilla a female name?
Petronilla is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Petronilla Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Petronilla Smith, Petronilla Johnson, Petronilla 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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