How Many People Are Named Tonja?
An estimated 5,953 people in the United States have the first name Tonja. It is almost exclusively a female name. The average bearer is 57 years old, and Tonja peaked in popularity in 1967 with 512 births that year.
Below you will find a full statistical profile of Tonja 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 Tonja paired with any surname.
Estimated Living Americans
5,953
About 1 in 57,577 people in the U.S.
Rarity
Rare
Predicted Gender
Female
99.9% confidence
Average Age
57
years old
Peak Year
1967
512 births
Total Registered
6,994
since 1880
Gender Distribution for Tonja
Tonja is almost exclusively a female name. Out of 6,994 total births registered, 99.9% were female.
Tonja as a male name
Ranked #4,977 in 1969
5 male births in 1969
Peak: 1969 (5 births)
Tonja as a female name
Ranked #16,305 in 2005
6 female births in 2005
Peak: 1967 (512 births)
Tonja: Popularity Over Time
SSA records for Tonja span from the 1940s to the 2000s, covering 7 decades of naming data. The most popular decade for this name was the 1960s, when 3,357 babies were registered. Tonja has declined significantly from its peak in the 1960s. Recent registrations are a fraction of what they were at the name's height.
Tonja by Decade
How has Tonja 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.
Tonja by State
Birth registrations for Tonja span all 36 states and territories in the SSA database. The highest counts are in Texas, California, Ohio. The lowest are in Connecticut, Utah, Arizona. On average, about 141 Tonjas were registered per state.
Tonja + Last Name Combinations
How many people share a full name with Tonja as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Tonja
Other first names starting with T with a similar number of bearers.
Tonja: Questions and Answers
How many people in the U.S. are named Tonja?
We estimate approximately 5,953 people named Tonja 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 57,577 Americans share this first name.
Is Tonja a common name?
Tonja is classified as "Rare" and is more popular than 96.9% of all first names in the SSA database. A total of 6,994 births have been registered with this name since 1880.
When was Tonja most popular?
Tonja reached peak popularity in 1967, when 512 babies were given this name. The average age of a living person named Tonja is approximately 57 years old, reflecting when the name was most commonly given.
Is Tonja a female name?
Tonja is predominantly female. 99.9% of people with this name are female. See the gender breakdown above for full details.
How many Tonja Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Tonja Smith, Tonja Johnson, Tonja 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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