How Many People Are Named Brannigan?
An estimated 27 people in the United States have the first name Brannigan. It is used for both genders, with 75.0% male. The average bearer is 27 years old, and Brannigan peaked in popularity in 1985 with 7 births that year.
Below you will find a full statistical profile of Brannigan 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 Brannigan paired with any surname.
Key Insights
- Brannigan is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
27
About 1 in 12,694,605 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
75.0% confidence
Average Age
27
years old
Peak Year
1985
7 births
Total Registered
28
since 1880
Gender Distribution for Brannigan
Brannigan is a genuinely unisex name, used for both males (75.0%) and females (25.0%). Out of 28 total births registered, 21 were male and 7 were female.
Brannigan as a male name
Ranked #12,559 in 2024
5 male births in 2024
Peak: 2004 (6 births)
Brannigan as a female name
Ranked #8,436 in 1985
7 female births in 1985
Peak: 1985 (7 births)
Brannigan: Popularity Over Time
SSA records for Brannigan span from the 1970s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2000s, when 11 babies were registered. While Brannigan is less common than at its peak in the 2000s, it remains a well-established name with steady registrations.
Brannigan by Decade
How has Brannigan 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.
Brannigan + Last Name Combinations
How many people share a full name with Brannigan as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Brannigan
Other first names starting with B with a similar number of bearers.
Brannigan: Questions and Answers
How many people in the U.S. are named Brannigan?
We estimate approximately 27 people named Brannigan 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 12,694,605 Americans share this first name.
Is Brannigan a common name?
Brannigan is classified as "Very Rare" and is more popular than 44.9% of all first names in the SSA database. A total of 28 births have been registered with this name since 1880.
When was Brannigan most popular?
Brannigan reached peak popularity in 1985, when 7 babies were given this name. The average age of a living person named Brannigan is approximately 27 years old, reflecting when the name was most commonly given.
Is Brannigan a male name?
Brannigan is predominantly male. 75.0% of people with this name are male. See the gender breakdown above for full details.
How many Brannigan Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Brannigan Smith, Brannigan Johnson, Brannigan 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.
Search for a full name combination
How Many of Me