How Many People Are Named Thadis?
An estimated 13 people in the United States have the first name Thadis. It is almost exclusively a male name. The average bearer is 75 years old, and Thadis peaked in popularity in 1934 with 6 births that year.
Below you will find a full statistical profile of Thadis 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 Thadis paired with any surname.
Key Insights
- With an average bearer age of 75, Thadis is a vintage name most associated with earlier generations. Most living bearers were born before 1961.
- Thadis is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
13
About 1 in 26,365,718 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
75
years old
Peak Year
1934
6 births
Total Registered
31
since 1880
Gender Distribution for Thadis
Thadis is almost exclusively a male name. Out of 31 total births registered, 100.0% were male.
Thadis as a male name
Ranked #4,549 in 1960
5 male births in 1960
Peak: 1934 (6 births)
Thadis: Popularity Over Time
SSA records for Thadis span from the 1920s to the 1960s, covering 5 decades of naming data. The most popular decade for this name was the 1930s, when 11 babies were registered. While Thadis is less common than at its peak in the 1930s, it remains a well-established name with steady registrations.
Thadis by Decade
How has Thadis 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.
Thadis + Last Name Combinations
How many people share a full name with Thadis as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Thadis
Other first names starting with T with a similar number of bearers.
Thadis: Questions and Answers
How many people in the U.S. are named Thadis?
We estimate approximately 13 people named Thadis 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 26,365,718 Americans share this first name.
Is Thadis a common name?
Thadis is classified as "Very Rare" and is more popular than 33.2% of all first names in the SSA database. A total of 31 births have been registered with this name since 1880.
When was Thadis most popular?
Thadis reached peak popularity in 1934, when 6 babies were given this name. The average age of a living person named Thadis is approximately 75 years old, reflecting when the name was most commonly given.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Thadis 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.
Is Thadis a male name?
Thadis is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
Why can Thadis 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. Thadis peaked in 1934, and the average living bearer is about 75 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Thadis Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Thadis Smith, Thadis Johnson, Thadis 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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