How Many People Are Named Hilliary?
An estimated 287 people in the United States have the first name Hilliary. It is predominantly female (98.4%). The average bearer is 39 years old, and Hilliary peaked in popularity in 1991 with 32 births that year.
Below you will find a full statistical profile of Hilliary 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 Hilliary paired with any surname.
Estimated Living Americans
287
About 1 in 1,194,266 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
98.4% confidence
Average Age
39
years old
Peak Year
1991
32 births
Total Registered
308
since 1880
Gender Distribution for Hilliary
Hilliary is predominantly female (98.4%), though 5 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Hilliary as a male name
Ranked #4,440 in 1919
5 male births in 1919
Peak: 1919 (5 births)
Hilliary as a female name
Ranked #14,317 in 1996
5 female births in 1996
Peak: 1991 (32 births)
Hilliary: Popularity Over Time
SSA records for Hilliary span from the 1910s to the 1990s, covering 4 decades of naming data. The most popular decade for this name was the 1990s, when 130 babies were registered. Hilliary remains highly popular today, with recent registration numbers near its historical peak.
Hilliary by Decade
How has Hilliary 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.
Hilliary by State
Hilliary + Last Name Combinations
How many people share a full name with Hilliary as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Hilliary
Other first names starting with H with a similar number of bearers.
Hilliary: Questions and Answers
How many people in the U.S. are named Hilliary?
We estimate approximately 287 people named Hilliary 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 1,194,266 Americans share this first name.
Is Hilliary a common name?
Hilliary is classified as "Very Rare" and is more popular than 78.7% of all first names in the SSA database. A total of 308 births have been registered with this name since 1880.
When was Hilliary most popular?
Hilliary reached peak popularity in 1991, when 32 babies were given this name. The average age of a living person named Hilliary is approximately 39 years old, reflecting when the name was most commonly given.
Is Hilliary a female name?
Hilliary is predominantly female. 98.4% of people with this name are female. See the gender breakdown above for full details.
How many Hilliary Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Hilliary Smith, Hilliary Johnson, Hilliary 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 0 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau estimate. Full methodology.
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