How Many People Are Named Tierney?
An estimated 3,805 people in the United States have the first name Tierney. It is predominantly female (99.4%). The average bearer is 29 years old, and Tierney peaked in popularity in 1993 with 172 births that year.
Below you will find a full statistical profile of Tierney 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 Tierney paired with any surname.
Estimated Living Americans
3,805
About 1 in 90,080 people in the U.S.
Rarity
Rare
Predicted Gender
Female
99.4% confidence
Average Age
29
years old
Peak Year
1993
172 births
Total Registered
3,964
since 1880
Gender Distribution for Tierney
Tierney is almost exclusively a female name. Out of 3,964 total births registered, 99.4% were female.
Tierney as a male name
Ranked #9,490 in 2006
8 male births in 2006
Peak: 2006 (8 births)
Tierney as a female name
Ranked #6,589 in 2024
18 female births in 2024
Peak: 1993 (172 births)
Tierney: Popularity Over Time
SSA records for Tierney span from the 1950s to the 2020s, covering 8 decades of naming data. The most popular decade for this name was the 1990s, when 1,213 babies were registered. Tierney has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Tierney by Decade
How has Tierney 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.
Tierney by State
Birth registrations for Tierney span all 24 states and territories in the SSA database. The highest counts are in California, Texas, New York. The lowest are in Maryland, Arizona, Alabama. On average, about 58 Tierneys were registered per state.
Tierney + Last Name Combinations
How many people share a full name with Tierney as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Tierney
Other first names starting with T with a similar number of bearers.
Tierney: Questions and Answers
How many people in the U.S. are named Tierney?
We estimate approximately 3,805 people named Tierney 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 90,080 Americans share this first name.
Is Tierney a common name?
Tierney is classified as "Rare" and is more popular than 95.9% of all first names in the SSA database. A total of 3,964 births have been registered with this name since 1880.
When was Tierney most popular?
Tierney reached peak popularity in 1993, when 172 babies were given this name. The average age of a living person named Tierney is approximately 29 years old, reflecting when the name was most commonly given.
Is Tierney a female name?
Tierney is predominantly female. 99.4% of people with this name are female. See the gender breakdown above for full details.
How many Tierney Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Tierney Smith, Tierney Johnson, Tierney 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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