How Many People Are Named Deidre?
An estimated 12,600 people in the United States have the first name Deidre. It is almost exclusively a female name. The average bearer is 51 years old, and Deidre peaked in popularity in 1963 with 541 births that year.
Below you will find a full statistical profile of Deidre 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 Deidre paired with any surname.
Estimated Living Americans
12,600
About 1 in 27,203 people in the U.S.
Rarity
Uncommon
Predicted Gender
Female
99.9% confidence
Average Age
51
years old
Peak Year
1963
541 births
Total Registered
14,677
since 1880
Gender Distribution for Deidre
Deidre is almost exclusively a female name. Out of 14,677 total births registered, 99.9% were female.
Deidre as a male name
Ranked #6,295 in 1987
6 male births in 1987
Peak: 1987 (6 births)
Deidre as a female name
Ranked #15,765 in 2023
5 female births in 2023
Peak: 1963 (541 births)
Deidre: Popularity Over Time
SSA records for Deidre span from the 1930s to the 2020s, covering 10 decades of naming data. The most popular decade for this name was the 1960s, when 4,369 babies were registered. Deidre has declined significantly from its peak in the 1960s. Recent registrations are a fraction of what they were at the name's height.
Deidre by Decade
How has Deidre 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.
Deidre by State
Birth registrations for Deidre span all 40 states and territories in the SSA database. The highest counts are in New York, California, Texas. The lowest are in Idaho, Hawaii, Maine. On average, about 290 Deidres were registered per state.
Deidre + Last Name Combinations
How many people share a full name with Deidre as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Deidre
Other first names starting with D with a similar number of bearers.
Deidre: Questions and Answers
How many people in the U.S. are named Deidre?
We estimate approximately 12,600 people named Deidre 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 27,203 Americans share this first name.
Is Deidre a common name?
Deidre is classified as "Uncommon" and is more popular than 98% of all first names in the SSA database. A total of 14,677 births have been registered with this name since 1880.
When was Deidre most popular?
Deidre reached peak popularity in 1963, when 541 babies were given this name. The average age of a living person named Deidre is approximately 51 years old, reflecting when the name was most commonly given.
Is Deidre a female name?
Deidre is predominantly female. 99.9% of people with this name are female. See the gender breakdown above for full details.
How many Deidre Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Deidre Smith, Deidre Johnson, Deidre 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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