Louis Morneau
There are approximately 1 people named Louis Morneau 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 Louis with Census Bureau frequency data for the surname Morneau. 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 Louis
183K
Alive today
Named Morneau
1.2K
Alive today
US population
343M
Denominator
Estimated living: 183K
Rarity: Common
Gender: Male
Peak year: 1921
Average age: 56
Estimated bearers: 1.2K
Rarity: Rare
Census rank: #24,961
Per 100K: 0.34
Top ancestry: White (93.5%)
First name trend
Louis: popularity over time
Year-by-year SSA birth registrations for the first name Louis. The peak year was 1921 with 7,296 births. The average person named Louis today is 56 years old.
Babies born per year
Ethnicity
Ancestry of the Morneau surname
Self-reported race and ethnicity breakdown for people with the surname Morneau, from the 2010 US Census Bureau. The largest group is White at 93.5%.
- White93.5%
- Black or African American2.2%
- Two or more races2.2%
- Asian and Pacific Islander1.2%
- Unknown or suppressed0.9%
Methodology
How we calculated this
The first name Louis has a living-bearer frequency of 0.0533% of the US population, based on 182,628 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Morneau appears at a rate of 0.34 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0003%.
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 Louis Morneau. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Louis
Related
Other people with the surname Morneau
FAQ
Louis Morneau: questions and answers
How many people are named Louis Morneau?
We estimate approximately 1 people in the United States share the full name Louis Morneau. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0533%) with the surname frequency (0.34 per 100K) against the current US population.
How rare is the name Louis Morneau?
We classify Louis Morneau as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Louis a male or female name?
Louis is predominantly male. Out of 407,900 total SSA registrations, 99.3% were male and 0.7% were female. See the full Louis 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.