How Many People Are Named Demario?
An estimated 6,162 people in the United States have the first name Demario. It is almost exclusively a male name. The average bearer is 31 years old, and Demario peaked in popularity in 1988 with 338 births that year.
Below you will find a full statistical profile of Demario 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 Demario paired with any surname.
Estimated Living Americans
6,162
About 1 in 55,624 people in the U.S.
Rarity
Rare
Predicted Gender
Male
99.7% confidence
Average Age
31
years old
Peak Year
1988
338 births
Total Registered
6,350
since 1880
Gender Distribution for Demario
Demario is almost exclusively a male name. Out of 6,350 total births registered, 99.7% were male.
Demario as a male name
Ranked #3,334 in 2024
35 male births in 2024
Peak: 1989 (334 births)
Demario as a female name
Ranked #10,697 in 1988
6 female births in 1988
Peak: 1978 (6 births)
Demario: Popularity Over Time
SSA records for Demario span from the 1960s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 1980s, when 2,235 babies were registered. Demario has declined significantly from its peak in the 1980s. Recent registrations are a fraction of what they were at the name's height.
Demario by Decade
How has Demario 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.
Demario by State
Birth registrations for Demario span all 22 states and territories in the SSA database. The highest counts are in Georgia, Michigan, Tennessee. The lowest are in Maryland, Missouri, Indiana. On average, about 209 Demarios were registered per state.
Demario + Last Name Combinations
How many people share a full name with Demario as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Demario
Other first names starting with D with a similar number of bearers.
Demario: Questions and Answers
How many people in the U.S. are named Demario?
We estimate approximately 6,162 people named Demario 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 55,624 Americans share this first name.
Is Demario a common name?
Demario is classified as "Rare" and is more popular than 96.9% of all first names in the SSA database. A total of 6,350 births have been registered with this name since 1880.
When was Demario most popular?
Demario reached peak popularity in 1988, when 338 babies were given this name. The average age of a living person named Demario is approximately 31 years old, reflecting when the name was most commonly given.
Is Demario a male name?
Demario is predominantly male. 99.7% of people with this name are male. See the gender breakdown above for full details.
How many Demario Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Demario Smith, Demario Johnson, Demario 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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