How Many People Are Named Thadus?
An estimated 1 people in the United States have the first name Thadus. It is almost exclusively a male name. The average bearer is 113 years old, and Thadus peaked in popularity in 1918 with 6 births that year.
Below you will find a full statistical profile of Thadus 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 Thadus paired with any surname.
Key Insights
- With an average bearer age of 113, Thadus is a vintage name most associated with earlier generations. Most living bearers were born before 1923.
- Thadus is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
1
About 1 in 342,754,338 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
113
years old
Peak Year
1918
6 births
Total Registered
11
since 1880
Gender Distribution for Thadus
Thadus is almost exclusively a male name. Out of 11 total births registered, 100.0% were male.
Thadus as a male name
Ranked #4,095 in 1935
5 male births in 1935
Peak: 1918 (6 births)
Thadus: Popularity Over Time
SSA records for Thadus span from the 1910s to the 1930s, covering 2 decades of naming data. The most popular decade for this name was the 1910s, when 6 babies were registered. Thadus remains highly popular today, with recent registration numbers near its historical peak.
Thadus by Decade
How has Thadus 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.
Thadus + Last Name Combinations
How many people share a full name with Thadus as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Thadus
Other first names starting with T with a similar number of bearers.
Thadus: Questions and Answers
How many people in the U.S. are named Thadus?
We estimate approximately 1 people named Thadus 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 342,754,338 Americans share this first name.
Is Thadus a common name?
Thadus is classified as "Very Rare" and is more popular than 3.8% of all first names in the SSA database. A total of 11 births have been registered with this name since 1880.
When was Thadus most popular?
Thadus reached peak popularity in 1918, when 6 babies were given this name. The average age of a living person named Thadus is approximately 113 years old, reflecting when the name was most commonly given.
Is Thadus a male name?
Thadus is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Thadus Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Thadus Smith, Thadus Johnson, Thadus 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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