How Many People Are Named Jillian?
people named Jillian are alive in the United States today (estimate)
About 1 in 4,186 people in the US has this name
Based on 83,424 babies named Jillian in Social Security records from 1944 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎 Rare
Peak Year
3,070 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Variant of GILLIAN.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
Same Sound, Other Spellings
These names are pronounced like Jillian in English. Counting Jillian and these spellings together, about 97,282 people alive in the US have the name.
⚧ Gender Distribution
Almost all of the babies given the name Jillian (99.7%) were girls.
👥 Age Distribution
The average person named Jillian alive today is about 30 years old, and 51% are between 30 and 59. Half of them were between 21 and 39 in 2025.
📈 Popularity Over Time
Jillian first appears in the records in 1944 and was given most often in 1982, to 3,070 babies. In 2025, 177 babies got the name.
Babies given the name each year, 1944 to 2025
🏆 Rank History
Jillian never made the top 10 girls' names. Its best rank was #96, in 1982, and it was in the top 100 in 2 years between 1982 and 1987. In 2025 it ranked #1,266.
| Girls | |
|---|---|
| Rank in 2025 | #1,266 |
| Best rank | #96 (1982) |
| Years in the top 100 | 2 (1982 to 1987) |
| Rank in its biggest decade | #115 in the 1980s |
📍 State-Wise Distribution
People named Jillian alive today, by the state where they were born (estimate; state records start in 1910).
More people named Jillian were born in New York than in any other state: about 8,821 of those alive today. Compared with the national rate in the same years, Jillian was given 3.3 times as often in New Hampshire, 3.2 times in Rhode Island and 3 times in Massachusetts.
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