How Many People Are Named Tamsen?
An estimated 356 people in the United States have the first name Tamsen. It is almost exclusively a female name. The average bearer is 51 years old, and Tamsen peaked in popularity in 1979 with 23 births that year.
Below you will find a full statistical profile of Tamsen 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 Tamsen paired with any surname.
Estimated Living Americans
356
About 1 in 962,793 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
51
years old
Peak Year
1979
23 births
Total Registered
419
since 1880
Gender Distribution for Tamsen
Tamsen is almost exclusively a female name. Out of 419 total births registered, 100.0% were female.
Tamsen as a female name
Ranked #17,368 in 2024
5 female births in 2024
Peak: 1979 (23 births)
Tamsen: Popularity Over Time
SSA records for Tamsen span from the 1940s to the 2020s, covering 9 decades of naming data. The most popular decade for this name was the 1980s, when 113 babies were registered. Tamsen has declined significantly from its peak in the 1980s. Recent registrations are a fraction of what they were at the name's height.
Tamsen by Decade
How has Tamsen 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.
Tamsen by State
Tamsen + Last Name Combinations
How many people share a full name with Tamsen as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Tamsen
Other first names starting with T with a similar number of bearers.
Tamsen: Questions and Answers
How many people in the U.S. are named Tamsen?
We estimate approximately 356 people named Tamsen 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 962,793 Americans share this first name.
Is Tamsen a common name?
Tamsen is classified as "Very Rare" and is more popular than 81.1% of all first names in the SSA database. A total of 419 births have been registered with this name since 1880.
When was Tamsen most popular?
Tamsen reached peak popularity in 1979, when 23 babies were given this name. The average age of a living person named Tamsen is approximately 51 years old, reflecting when the name was most commonly given.
Is Tamsen a female name?
Tamsen is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Tamsen Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Tamsen Smith, Tamsen Johnson, Tamsen 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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