How Many People Are Named Thadd?
An estimated 132 people in the United States have the first name Thadd. It is almost exclusively a male name. The average bearer is 52 years old, and Thadd peaked in popularity in 1971 with 13 births that year.
Below you will find a full statistical profile of Thadd 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 Thadd paired with any surname.
Estimated Living Americans
132
About 1 in 2,596,624 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
52
years old
Peak Year
1971
13 births
Total Registered
145
since 1880
Gender Distribution for Thadd
Thadd is almost exclusively a male name. Out of 145 total births registered, 100.0% were male.
Thadd as a male name
Ranked #13,038 in 2004
5 male births in 2004
Peak: 1971 (13 births)
Thadd: Popularity Over Time
SSA records for Thadd span from the 1960s to the 2000s, covering 5 decades of naming data. The most popular decade for this name was the 1970s, when 71 babies were registered. Thadd has declined significantly from its peak in the 1970s. Recent registrations are a fraction of what they were at the name's height.
Thadd by Decade
How has Thadd 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.
Thadd + Last Name Combinations
How many people share a full name with Thadd as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Thadd
Other first names starting with T with a similar number of bearers.
Thadd: Questions and Answers
How many people in the U.S. are named Thadd?
We estimate approximately 132 people named Thadd 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 2,596,624 Americans share this first name.
Is Thadd a common name?
Thadd is classified as "Very Rare" and is more popular than 68.5% of all first names in the SSA database. A total of 145 births have been registered with this name since 1880.
When was Thadd most popular?
Thadd reached peak popularity in 1971, when 13 babies were given this name. The average age of a living person named Thadd is approximately 52 years old, reflecting when the name was most commonly given.
Is Thadd a male name?
Thadd is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Thadd Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Thadd Smith, Thadd Johnson, Thadd 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.
Search for a full name combination
How Many of Me