How Many People Are Named Deni?
An estimated 769 people in the United States have the first name Deni. It is used for both genders, with 79.6% female. The average bearer is 36 years old, and Deni peaked in popularity in 1974 with 22 births that year.
Below you will find a full statistical profile of Deni as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. You can also check how many people share the full name Deni paired with any surname.
Estimated Living Americans
769
About 1 in 445,714 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
79.6% confidence
Average Age
36
years old
Peak Year
1974
22 births
Total Registered
835
since 1880
Gender Distribution for Deni
Deni is a genuinely unisex name, used for both males (20.4%) and females (79.6%). Out of 835 total births registered, 170 were male and 665 were female.
Deni as a male name
Ranked #10,107 in 2024
7 male births in 2024
Peak: 2004 (13 births)
Deni as a female name
Ranked #13,873 in 2024
6 female births in 2024
Peak: 1974 (22 births)
Deni in the 2020 Census
The 2020 Census recorded 1,159 people with the first name Deni, which placed it at #11,199 in the published first-name tables. This is a snapshot of people who already had the name in 2020. The estimated living count elsewhere on this page is different: it is a current estimate built from SSA birth records and age-based survival rates, so the two figures are not expected to match exactly.
Read this section as a snapshot of people who already had the name in 2020. The SSA charts elsewhere on this page are still the better way to see how the name rose, fell, or shifted across generations.
Gender in the 2020 Census
In the 2020 Census, Deni was recorded as predominantly female. Out of 1,159 people with this name in that snapshot, 35.3% were male and 64.7% were female. That is less heavily female than the long-run SSA birth pattern on this page, which sits at 79.6% female.
Census Count
1,159
people with this name
Census Rank
#11,199
among Census first names
Frequency Rate
0.38
per 100,000 people
Recorded Race and Hispanic Origin in the 2020 Census
In the 2020 Census, the first name Deni was most commonly recorded among people who identified as White (64.80%). The next largest recorded groups were Hispanic (23.30%) and Black (4.40%).
These percentages describe the people who had the first name Deni in the 2020 Census. They do not tell you the deeper meaning or origin of the name itself.
2020 Census demographic breakdown
Each row shows a recorded Census category for people with the first name Deni.
| Group | Share | Count |
|---|---|---|
| White | 64.80% | 751 |
| Hispanic | 23.30% | 270 |
| Black | 4.40% | 51 |
| Asian and Pacific Islander | 3.45% | 40 |
| Two or More Races | 3.19% | 37 |
| American Indian and Alaska Native | 0.86% | 10 |
Deni: Popularity Over Time
SSA records for Deni span from the 1940s to the 2020s, covering 9 decades of naming data. The most popular decade for this name was the 1990s, when 159 babies were registered. While Deni is less common than at its peak in the 1990s, it remains a well-established name with steady registrations.
Deni by Decade
How has Deni 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.
Deni + Last Name Combinations
How many people share a full name with Deni as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Deni
Other first names starting with D with a similar number of bearers.
Deni: Questions and Answers
How many people in the U.S. are named Deni?
We estimate approximately 769 people named Deni 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 445,714 Americans share this first name.
Is Deni a common name?
Deni is classified as "Very Rare" and is more popular than 88.3% of all first names in the SSA database. A total of 835 births have been registered with this name since 1880.
When was Deni most popular?
Deni reached peak popularity in 1974, when 22 babies were given this name. The average age of a living person named Deni is approximately 36 years old, reflecting when the name was most commonly given.
How common was Deni in the 2020 Census?
The 2020 Census recorded 1,159 people with the first name Deni. That placed it at #11,199 in the published Census first-name tables, or 0.38 people per 100,000.
Why is the Census count different from the living estimate?
Because they measure different things. The Census number is a count of people with the name in 2020. The living estimate is a current model based on SSA birth records and survival rates, so it aims to estimate how many people with the name are alive now.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Deni was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
What does the Census say about the gender split for Deni?
In the 2020 Census snapshot, Deni was recorded as predominantly female. The published split was 35.3% male and 64.7% female.
What does the Census say about the background of people named Deni?
In the 2020 Census, the first name Deni was most commonly recorded among people who identified as White (64.80%). The next largest recorded groups were Hispanic (23.30%) and Black (4.40%). These percentages describe the people who had the name in the 2020 Census, not the deeper meaning or origin of the name itself.
Why can the Census sex total and race total differ slightly?
The Census published separate first-name tables for sex and for race and Hispanic origin. Those totals can differ slightly for the same name, so the page uses them as two related snapshots rather than treating them as perfectly interchangeable counts.
Does every first name have Census demographic data?
No. The public Census first-name tables only include names that met the Bureau's publication rules. That means some names on this site will have SSA history but no published Census demographic snapshot.
Is Deni a female name?
Deni is predominantly female. 79.6% of people with this name are female. See the gender breakdown above for full details.
Why can Deni have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Deni peaked in 1974, and the average living bearer is about 36 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Deni Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Deni Smith, Deni Johnson, Deni 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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