How Many People Are Named Jilian?
An estimated 774 people in the United States have the first name Jilian. It is almost exclusively a female name. The average bearer is 31 years old, and Jilian peaked in popularity in 1982 with 44 births that year.
Below you will find a full statistical profile of Jilian 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 Jilian paired with any surname.
Estimated Living Americans
774
About 1 in 442,835 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
31
years old
Peak Year
1982
44 births
Total Registered
803
since 1880
Gender Distribution for Jilian
Jilian is almost exclusively a female name. Out of 803 total births registered, 100.0% were female.
Jilian as a female name
Ranked #17,416 in 2016
5 female births in 2016
Peak: 1982 (44 births)
Jilian: Popularity Over Time
SSA records for Jilian span from the 1970s to the 2010s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 296 babies were registered. Jilian has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Jilian by Decade
How has Jilian 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.
Jilian by State
Birth registrations for Jilian span all 5 states and territories in the SSA database. The highest counts are in California, Texas, New Jersey. The lowest are in Ohio, New York, New Jersey. On average, about 12 Jilians were registered per state.
Jilian + Last Name Combinations
How many people share a full name with Jilian as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Jilian
Other first names starting with J with a similar number of bearers.
Jilian: Questions and Answers
How many people in the U.S. are named Jilian?
We estimate approximately 774 people named Jilian 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 442,835 Americans share this first name.
Is Jilian a common name?
Jilian is classified as "Very Rare" and is more popular than 88.3% of all first names in the SSA database. A total of 803 births have been registered with this name since 1880.
When was Jilian most popular?
Jilian reached peak popularity in 1982, when 44 babies were given this name. The average age of a living person named Jilian is approximately 31 years old, reflecting when the name was most commonly given.
Is Jilian a female name?
Jilian is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Jilian Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Jilian Smith, Jilian Johnson, Jilian 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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