How Common is the First Name Jillian?
We estimate that there are 81,677 people named Jillian who are currently alive and were born in the United States. Jillian is the 340th most common for women, and the 637th most common overall.
How Old are People Named Jillian?
The average person named Jillian is 28.57 years old.
Is Jillian a Popular Baby Name Right Now?
213 people named Jillian were born in the U.S. in 2024. It was the 1,129th most popular name for girls, and the 2,146th most popular overall.
The popularity of Jillian peaked in 1982, when it was the 96th most popular name for baby girls.
Is Jillian a Boy's Name or a Girl's Name?
Jillian is almost exclusively a female name. 99.7% of people named Jillian are female.