How Many People Are Named Thomasine?
An estimated 1,100 people in the United States have the first name Thomasine. It is almost exclusively a female name. The average bearer is 68 years old, and Thomasine peaked in popularity in 1950 with 67 births that year.
Below you will find a full statistical profile of Thomasine 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 Thomasine paired with any surname.
Key Insights
- With an average bearer age of 68, Thomasine is a vintage name most associated with earlier generations. Most living bearers were born before 1968.
Estimated Living Americans
1,100
About 1 in 311,595 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
68
years old
Peak Year
1950
67 births
Total Registered
2,234
since 1880
Gender Distribution for Thomasine
Thomasine is almost exclusively a female name. Out of 2,234 total births registered, 100.0% were female.
Thomasine as a female name
Ranked #13,305 in 1994
6 female births in 1994
Peak: 1950 (67 births)
Thomasine: Popularity Over Time
SSA records for Thomasine span from the 1900s to the 1990s, covering 10 decades of naming data. The most popular decade for this name was the 1940s, when 505 babies were registered. Thomasine has declined significantly from its peak in the 1940s. Recent registrations are a fraction of what they were at the name's height.
Thomasine by Decade
How has Thomasine 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.
Thomasine by State
Birth registrations for Thomasine span all 10 states and territories in the SSA database. The highest counts are in Virginia, District of Columbia, Pennsylvania. The lowest are in Massachusetts, Alabama, Illinois. On average, about 51 Thomasines were registered per state.
Thomasine + Last Name Combinations
How many people share a full name with Thomasine as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Thomasine
Other first names starting with T with a similar number of bearers.
Thomasine: Questions and Answers
How many people in the U.S. are named Thomasine?
We estimate approximately 1,100 people named Thomasine 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 311,595 Americans share this first name.
Is Thomasine a common name?
Thomasine is classified as "Rare" and is more popular than 90.7% of all first names in the SSA database. A total of 2,234 births have been registered with this name since 1880.
When was Thomasine most popular?
Thomasine reached peak popularity in 1950, when 67 babies were given this name. The average age of a living person named Thomasine is approximately 68 years old, reflecting when the name was most commonly given.
Is Thomasine a female name?
Thomasine is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Thomasine Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Thomasine Smith, Thomasine Johnson, Thomasine 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