How Many People Are Named Delouise?
An estimated 2 people in the United States have the first name Delouise. It is almost exclusively a female name. The average bearer is 97 years old, and Delouise peaked in popularity in 1928 with 5 births that year.
Below you will find a full statistical profile of Delouise 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 Delouise paired with any surname.
Key Insights
- With an average bearer age of 97, Delouise is a vintage name most associated with earlier generations. Most living bearers were born before 1939.
- Delouise is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
2
About 1 in 171,377,169 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
97
years old
Peak Year
1928
5 births
Total Registered
15
since 1880
Gender Distribution for Delouise
Delouise is almost exclusively a female name. Out of 15 total births registered, 100.0% were female.
Delouise as a female name
Ranked #4,553 in 1941
5 female births in 1941
Peak: 1928 (5 births)
Delouise: Popularity Over Time
SSA records for Delouise span from the 1920s to the 1940s, covering 3 decades of naming data. The most popular decade for this name was the 1940s, when 5 babies were registered. Delouise remains highly popular today, with recent registration numbers near its historical peak.
Delouise by Decade
How has Delouise 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.
Delouise + Last Name Combinations
How many people share a full name with Delouise as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Delouise
Other first names starting with D with a similar number of bearers.
Delouise: Questions and Answers
How many people in the U.S. are named Delouise?
We estimate approximately 2 people named Delouise 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 171,377,169 Americans share this first name.
Is Delouise a common name?
Delouise is classified as "Very Rare" and is more popular than 4.3% of all first names in the SSA database. A total of 15 births have been registered with this name since 1880.
When was Delouise most popular?
Delouise reached peak popularity in 1928, when 5 babies were given this name. The average age of a living person named Delouise is approximately 97 years old, reflecting when the name was most commonly given.
Is Delouise a female name?
Delouise is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Delouise Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Delouise Smith, Delouise Johnson, Delouise 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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