How Many People Are Named Hadlei?
An estimated 94 people in the United States have the first name Hadlei. It is almost exclusively a female name. The average bearer is 11 years old, and Hadlei peaked in popularity in 2013 with 12 births that year.
Below you will find a full statistical profile of Hadlei 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 Hadlei paired with any surname.
Key Insights
- Hadlei is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
94
About 1 in 3,646,323 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
11
years old
Peak Year
2013
12 births
Total Registered
95
since 1880
Gender Distribution for Hadlei
Hadlei is almost exclusively a female name. Out of 95 total births registered, 100.0% were female.
Hadlei as a female name
Ranked #12,654 in 2021
7 female births in 2021
Peak: 2013 (12 births)
Hadlei: Popularity Over Time
SSA records for Hadlei span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2010s, when 73 babies were registered. Hadlei has declined significantly from its peak in the 2010s. Recent registrations are a fraction of what they were at the name's height.
Hadlei by Decade
How has Hadlei 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.
Hadlei + Last Name Combinations
How many people share a full name with Hadlei as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Hadlei
Other first names starting with H with a similar number of bearers.
Hadlei: Questions and Answers
How many people in the U.S. are named Hadlei?
We estimate approximately 94 people named Hadlei 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 3,646,323 Americans share this first name.
Is Hadlei a common name?
Hadlei is classified as "Very Rare" and is more popular than 63.7% of all first names in the SSA database. A total of 95 births have been registered with this name since 1880.
When was Hadlei most popular?
Hadlei reached peak popularity in 2013, when 12 babies were given this name. The average age of a living person named Hadlei is approximately 11 years old, reflecting when the name was most commonly given.
Is Hadlei a female name?
Hadlei is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Hadlei Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Hadlei Smith, Hadlei Johnson, Hadlei 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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