Callum Blue
There are approximately 1 people named Callum Blue 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 Callum with Census Bureau frequency data for the surname Blue. 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 Callum
13K
Alive today
Named Blue
28K
Alive today
US population
343M
Denominator
Estimated living: 13K
Rarity: Uncommon
Gender: Male
Peak year: 2024
Average age: 8
Estimated bearers: 28K
Rarity: Uncommon
Census rank: #1,466
Per 100K: 8.25
Top ancestry: Black (45.6%)
First name trend
Callum: popularity over time
Year-by-year SSA birth registrations for the first name Callum. The peak year was 2024 with 2,263 births. The average person named Callum today is 8 years old.
Babies born per year
Ethnicity
Ancestry of the Blue surname
Self-reported race and ethnicity breakdown for people with the surname Blue, from the 2010 US Census Bureau. The largest group is Black at 45.6%.
- Black or African American45.6%
- White45.0%
- Two or more races3.2%
- American Indian and Alaska Native3.1%
- Hispanic or Latino2.2%
- Asian and Pacific Islander0.9%
Methodology
How we calculated this
The first name Callum has a living-bearer frequency of 0.0038% of the US population, based on 12,973 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Blue appears at a rate of 8.25 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0083%.
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 Callum Blue. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people with the surname Blue
FAQ
Callum Blue: questions and answers
How many people are named Callum Blue?
We estimate approximately 1 people in the United States share the full name Callum Blue. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0038%) with the surname frequency (8.25 per 100K) against the current US population.
How rare is the name Callum Blue?
We classify Callum Blue as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Callum a male or female name?
Callum is predominantly male. Out of 13,076 total SSA registrations, 99.8% were male and 0.2% were female. See the full Callum 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.