Fionnula Flanagan
There are approximately 1 people named Fionnula Flanagan living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Fionnula with Census Bureau frequency data for the surname Flanagan. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
1
1 in 342,754,338
Named Fionnula
5
Alive today
Named Flanagan
36K
Alive today
US population
343M
Denominator
Estimated living: 5
Rarity: Very Rare
Gender: Female
Peak year: 2016
Average age: 10
Estimated bearers: 36K
Rarity: Uncommon
Census rank: #1,134
Per 100K: 10.47
Top ancestry: White (88.8%)
Ethnicity
Ancestry of the Flanagan surname
Self-reported race and ethnicity breakdown for people with the surname Flanagan, from the 2010 US Census Bureau. The largest group is White at 88.8%.
- White88.8%
- Black or African American6.5%
- Hispanic or Latino2.4%
- Two or more races1.3%
- Asian and Pacific Islander0.6%
- American Indian and Alaska Native0.4%
Methodology
How we calculated this
The first name Fionnula has a living-bearer frequency of 0.0000% of the US population, based on 5 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Flanagan appears at a rate of 10.47 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0105%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Fionnula Flanagan. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
FAQ
Fionnula Flanagan: questions and answers
How many people are named Fionnula Flanagan?
We estimate approximately 1 people in the United States share the full name Fionnula Flanagan. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0000%) with the surname frequency (10.47 per 100K) against the current US population.
How rare is the name Fionnula Flanagan?
We classify Fionnula Flanagan as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Fionnula a male or female name?
Fionnula is predominantly female. Out of 5 total SSA registrations, 0.0% were male and 100.0% were female. See the full Fionnula profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.