How Many People Are Named Thelmon?
An estimated 1 people in the United States have the first name Thelmon. It is almost exclusively a male name. The average bearer is 122 years old, and Thelmon peaked in popularity in 1910 with 6 births that year.
Below you will find a full statistical profile of Thelmon 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 Thelmon paired with any surname.
Key Insights
- With an average bearer age of 122, Thelmon is a vintage name most associated with earlier generations. Most living bearers were born before 1914.
- Thelmon 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
122
years old
Peak Year
1910
6 births
Total Registered
27
since 1880
Gender Distribution for Thelmon
Thelmon is almost exclusively a male name. Out of 27 total births registered, 100.0% were male.
Thelmon as a male name
Ranked #4,103 in 1933
5 male births in 1933
Peak: 1910 (6 births)
Thelmon: Popularity Over Time
SSA records for Thelmon span from the 1910s to the 1930s, covering 3 decades of naming data. The most popular decade for this name was the 1910s, when 17 babies were registered. Thelmon has declined significantly from its peak in the 1910s. Recent registrations are a fraction of what they were at the name's height.
Thelmon by Decade
How has Thelmon 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.
Thelmon by State
Thelmon + Last Name Combinations
How many people share a full name with Thelmon as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Thelmon
Other first names starting with T with a similar number of bearers.
Thelmon: Questions and Answers
How many people in the U.S. are named Thelmon?
We estimate approximately 1 people named Thelmon 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 Thelmon a common name?
Thelmon is classified as "Very Rare" and is more popular than 3.8% of all first names in the SSA database. A total of 27 births have been registered with this name since 1880.
When was Thelmon most popular?
Thelmon reached peak popularity in 1910, when 6 babies were given this name. The average age of a living person named Thelmon is approximately 122 years old, reflecting when the name was most commonly given.
Is Thelmon a male name?
Thelmon is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Thelmon Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Thelmon Smith, Thelmon Johnson, Thelmon 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