How Many People Are Named Billyjo?
An estimated 72 people in the United States have the first name Billyjo. It is used for both genders, with 56.4% female. The average bearer is 49 years old, and Billyjo peaked in popularity in 1971 with 14 births that year.
Below you will find a full statistical profile of Billyjo 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 Billyjo paired with any surname.
Key Insights
- Billyjo is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
72
About 1 in 4,760,477 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
56.4% confidence
Average Age
49
years old
Peak Year
1971
14 births
Total Registered
78
since 1880
Gender Distribution for Billyjo
Billyjo is a genuinely unisex name, used for both males (43.6%) and females (56.4%). Out of 78 total births registered, 34 were male and 44 were female.
Billyjo as a male name
Ranked #5,560 in 1981
6 male births in 1981
Peak: 1980 (7 births)
Billyjo as a female name
Ranked #8,251 in 1980
7 female births in 1980
Peak: 1977 (11 births)
Billyjo: Popularity Over Time
SSA records for Billyjo span from the 1970s to the 1980s, covering 2 decades of naming data. The most popular decade for this name was the 1970s, when 58 babies were registered. While Billyjo is less common than at its peak in the 1970s, it remains a well-established name with steady registrations.
Billyjo by Decade
How has Billyjo 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.
Billyjo + Last Name Combinations
How many people share a full name with Billyjo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Billyjo
Other first names starting with B with a similar number of bearers.
Billyjo: Questions and Answers
How many people in the U.S. are named Billyjo?
We estimate approximately 72 people named Billyjo 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 4,760,477 Americans share this first name.
Is Billyjo a common name?
Billyjo is classified as "Very Rare" and is more popular than 59.7% of all first names in the SSA database. A total of 78 births have been registered with this name since 1880.
When was Billyjo most popular?
Billyjo reached peak popularity in 1971, when 14 babies were given this name. The average age of a living person named Billyjo is approximately 49 years old, reflecting when the name was most commonly given.
Is Billyjo a female name?
Billyjo is predominantly female. 56.4% of people with this name are female. See the gender breakdown above for full details.
How many Billyjo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Billyjo Smith, Billyjo Johnson, Billyjo 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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