Brendan Morrison
There are approximately 36 people named Brendan Morrison living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 9,520,954 Americans.
This estimate combines SSA birth records for the first name Brendan with Census Bureau frequency data for the surname Morrison. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
36
1 in 9,520,954
Named Brendan
88K
Alive today
Named Morrison
141K
Alive today
US population
343M
Denominator
Estimated living: 88K
Rarity: Uncommon
Gender: Male
Peak year: 1999
Average age: 31
Estimated bearers: 141K
Rarity: Common
Census rank: #250
Per 100K: 41.06
Top ancestry: White (79.1%)
First name trend
Brendan: popularity over time
Year-by-year SSA birth registrations for the first name Brendan. The peak year was 1999 with 4,004 births. The average person named Brendan today is 31 years old.
Babies born per year
Ethnicity
Ancestry of the Morrison surname
Self-reported race and ethnicity breakdown for people with the surname Morrison, from the 2010 US Census Bureau. The largest group is White at 79.1%.
- White79.1%
- Black or African American14.8%
- Hispanic or Latino2.5%
- Two or more races2.0%
- American Indian and Alaska Native1.0%
- Asian and Pacific Islander0.6%
Methodology
How we calculated this
The first name Brendan has a living-bearer frequency of 0.0258% of the US population, based on 88,322 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Morrison appears at a rate of 41.06 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0411%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 36 people with the full name Brendan Morrison. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Brendan
Related
Other people with the surname Morrison
FAQ
Brendan Morrison: questions and answers
How many people are named Brendan Morrison?
We estimate approximately 36 people in the United States share the full name Brendan Morrison. That works out to about 1 in 9,520,954 Americans. This is calculated by combining the first-name frequency (0.0258%) with the surname frequency (41.06 per 100K) against the current US population.
How rare is the name Brendan Morrison?
We classify Brendan Morrison as "Very Rare". About 1 in 9,520,954 Americans share this exact first and last name combination.
Is Brendan a male or female name?
Brendan is predominantly male. Out of 91,937 total SSA registrations, 99.6% were male and 0.4% were female. See the full Brendan 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.