How Many People Are Named Deirdre?
An estimated 13,953 people in the United States have the first name Deirdre. It is almost exclusively a female name. The average bearer is 54 years old, and Deirdre peaked in popularity in 1961 with 799 births that year.
Below you will find a full statistical profile of Deirdre 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 Deirdre paired with any surname.
Estimated Living Americans
13,953
About 1 in 24,565 people in the U.S.
Rarity
Uncommon
Predicted Gender
Female
100.0% confidence
Average Age
54
years old
Peak Year
1961
799 births
Total Registered
16,831
since 1880
Gender Distribution for Deirdre
Deirdre is almost exclusively a female name. Out of 16,831 total births registered, 100.0% were female.
Deirdre as a female name
Ranked #9,686 in 2024
10 female births in 2024
Peak: 1961 (799 births)
Deirdre: Popularity Over Time
SSA records for Deirdre span from the 1920s to the 2020s, covering 11 decades of naming data. The most popular decade for this name was the 1960s, when 6,321 babies were registered. Deirdre has declined significantly from its peak in the 1960s. Recent registrations are a fraction of what they were at the name's height.
Deirdre by Decade
How has Deirdre 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.
Deirdre by State
Birth registrations for Deirdre span all 38 states and territories in the SSA database. The highest counts are in New York, California, Massachusetts. The lowest are in Oregon, Arizona, West Virginia. On average, about 355 Deirdres were registered per state.
Deirdre + Last Name Combinations
How many people share a full name with Deirdre as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Deirdre
Other first names starting with D with a similar number of bearers.
Deirdre: Questions and Answers
How many people in the U.S. are named Deirdre?
We estimate approximately 13,953 people named Deirdre 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 24,565 Americans share this first name.
Is Deirdre a common name?
Deirdre is classified as "Uncommon" and is more popular than 98.1% of all first names in the SSA database. A total of 16,831 births have been registered with this name since 1880.
When was Deirdre most popular?
Deirdre reached peak popularity in 1961, when 799 babies were given this name. The average age of a living person named Deirdre is approximately 54 years old, reflecting when the name was most commonly given.
Is Deirdre a female name?
Deirdre is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Deirdre Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Deirdre Smith, Deirdre Johnson, Deirdre 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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