How Many People Are Named Louis?
An estimated 182,628 people in the United States have the first name Louis. While not in the top 50, it remains a well-known name ranking #301 overall. It is predominantly male (99.3%). The average bearer is 56 years old, and Louis peaked in popularity in 1921 with 7,296 births that year.
Below you will find a full statistical profile of Louis 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 Louis paired with any surname.
Key Insights
- While Louis is overwhelmingly male, 2,841 female births have been registered with this name since 1880.
Estimated Living Americans
182,628
About 1 in 1,877 people in the U.S.
Rarity
Common
Predicted Gender
Male
99.3% confidence
Average Age
56
years old
Peak Year
1921
7,296 births
Total Registered
407,900
since 1880
Gender Distribution for Louis
Louis is almost exclusively a male name. Out of 407,900 total births registered, 99.3% were male.
Louis as a male name
Ranked #236 in 2024
1,503 male births in 2024
Peak: 1921 (7,247 births)
Louis as a female name
Ranked #16,626 in 2023
5 female births in 2023
Peak: 1926 (71 births)
Louis: Popularity Over Time
SSA records for Louis span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 1920s, when 68,296 babies were registered. Louis has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Louis by Decade
How has Louis 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.
| Decade | Total | Male | Female | |
|---|---|---|---|---|
| 1880s | 8,338 | 8,275 | 63 | |
| 1890s | 8,544 | 8,442 | 102 | |
| 1900s | 10,498 | 10,372 | 126 | |
| 1910s | 50,972 | 50,600 | 372 | |
| 1920s | 68,296 | 67,693 | 603 | |
| 1930s | 48,140 | 47,754 | 386 | |
| 1940s | 49,707 | 49,429 | 278 | |
| 1950s | 48,185 | 47,931 | 254 | |
| 1960s | 33,588 | 33,378 | 210 | |
| 1970s | 20,323 | 20,147 | 176 | |
| 1980s | 17,532 | 17,355 | 177 | |
| 1990s | 14,493 | 14,435 | 58 | |
| 2000s | 10,271 | 10,261 | 10 | |
| 2010s | 11,823 | 11,813 | 10 | |
| 2020s | 7,190 | 7,174 | 16 | |
Louis by State
Birth registrations for Louis span all 51 states and territories in the SSA database. The highest counts are in New York, Pennsylvania, California. The lowest are in Alaska, Wyoming, Nevada. On average, about 7,384 Louiss were registered per state.
Louis + Last Name Combinations
How many people share a full name with Louis as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Louis
Other first names starting with L with a similar number of bearers.
Louis: Questions and Answers
How many people in the U.S. are named Louis?
We estimate approximately 182,628 people named Louis 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 1,877 Americans share this first name.
Is Louis a common name?
Louis is classified as "Common" and is more popular than 99.7% of all first names in the SSA database. A total of 407,900 births have been registered with this name since 1880.
When was Louis most popular?
Louis reached peak popularity in 1921, when 7,296 babies were given this name. The average age of a living person named Louis is approximately 56 years old, reflecting when the name was most commonly given.
Is Louis a male name?
Louis is predominantly male. 99.3% of people with this name are male. See the gender breakdown above for full details.
How many Louis Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Louis Smith, Louis Johnson, Louis 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.
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