How Many People Are Named Dierdre?
An estimated 915 people in the United States have the first name Dierdre. It is almost exclusively a female name. The average bearer is 56 years old, and Dierdre peaked in popularity in 1961 with 62 births that year.
Below you will find a full statistical profile of Dierdre 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 Dierdre paired with any surname.
Estimated Living Americans
915
About 1 in 374,595 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
56
years old
Peak Year
1961
62 births
Total Registered
1,115
since 1880
Gender Distribution for Dierdre
Dierdre is almost exclusively a female name. Out of 1,115 total births registered, 100.0% were female.
Dierdre as a female name
Ranked #15,773 in 2009
6 female births in 2009
Peak: 1961 (62 births)
Dierdre: Popularity Over Time
SSA records for Dierdre span from the 1940s to the 2000s, covering 7 decades of naming data. The most popular decade for this name was the 1960s, when 436 babies were registered. Dierdre has declined significantly from its peak in the 1960s. Recent registrations are a fraction of what they were at the name's height.
Dierdre by Decade
How has Dierdre 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.
Dierdre by State
Birth registrations for Dierdre span all 6 states and territories in the SSA database. The highest counts are in New York, California, Louisiana. The lowest are in Pennsylvania, New Jersey, Massachusetts. On average, about 26 Dierdres were registered per state.
Dierdre + Last Name Combinations
How many people share a full name with Dierdre as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Dierdre
Other first names starting with D with a similar number of bearers.
Dierdre: Questions and Answers
How many people in the U.S. are named Dierdre?
We estimate approximately 915 people named Dierdre 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 374,595 Americans share this first name.
Is Dierdre a common name?
Dierdre is classified as "Very Rare" and is more popular than 89.5% of all first names in the SSA database. A total of 1,115 births have been registered with this name since 1880.
When was Dierdre most popular?
Dierdre reached peak popularity in 1961, when 62 babies were given this name. The average age of a living person named Dierdre is approximately 56 years old, reflecting when the name was most commonly given.
Is Dierdre a female name?
Dierdre is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Dierdre Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Dierdre Smith, Dierdre Johnson, Dierdre 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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