How Many People Are Named Tonni?
An estimated 217 people in the United States have the first name Tonni. It is almost exclusively a female name. The average bearer is 55 years old, and Tonni peaked in popularity in 1963 with 16 births that year.
Below you will find a full statistical profile of Tonni 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 Tonni paired with any surname.
Estimated Living Americans
217
About 1 in 1,579,513 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
55
years old
Peak Year
1963
16 births
Total Registered
261
since 1880
Gender Distribution for Tonni
Tonni is almost exclusively a female name. Out of 261 total births registered, 100.0% were female.
Tonni as a female name
Ranked #18,619 in 2004
5 female births in 2004
Peak: 1963 (16 births)
Tonni: Popularity Over Time
SSA records for Tonni span from the 1940s to the 2000s, covering 7 decades of naming data. The most popular decade for this name was the 1960s, when 102 babies were registered. Tonni has declined significantly from its peak in the 1960s. Recent registrations are a fraction of what they were at the name's height.
Tonni by Decade
How has Tonni 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.
Tonni + Last Name Combinations
How many people share a full name with Tonni as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Tonni
Other first names starting with T with a similar number of bearers.
Tonni: Questions and Answers
How many people in the U.S. are named Tonni?
We estimate approximately 217 people named Tonni 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 1,579,513 Americans share this first name.
Is Tonni a common name?
Tonni is classified as "Very Rare" and is more popular than 75.2% of all first names in the SSA database. A total of 261 births have been registered with this name since 1880.
When was Tonni most popular?
Tonni reached peak popularity in 1963, when 16 babies were given this name. The average age of a living person named Tonni is approximately 55 years old, reflecting when the name was most commonly given.
Is Tonni a female name?
Tonni is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Tonni Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Tonni Smith, Tonni Johnson, Tonni 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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