How Many People Are Named Dillan?
people named Dillan are alive in the United States today (estimate)
About 1 in 47,214 people in the US has this name
Based on 7,387 babies named Dillan in Social Security records from 1975 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
341 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Variant of DYLAN.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
Same Sound, Other Spellings
These names are pronounced like Dillan in English. Counting Dillan and these spellings together, about 497,780 people alive in the US have the name.
⚧ Gender Distribution
Of the babies given the name Dillan, 5.4% were girls and 94.6% were boys. The share of girls among babies named Dillan rose from 0% in the 1980s to 19.3% in the 2020s.
👥 Age Distribution
The average person named Dillan alive today is about 22 years old, and 78% are under 30. Half of them were between 16 and 29 in 2025.
📈 Popularity Over Time
Dillan first appears in the records in 1975 and was given most often in 1992, to 341 babies. In 2025, 37 babies got the name.
Babies given the name each year, 1975 to 2025
🏆 Rank History
Dillan has never been one of the 100 most popular boys' names. Its best rank was #553, in 1992. In 2025 it ranked #3,870.
| Boys | |
|---|---|
| Rank in 2025 | #3,870 |
| Best rank | #553 (1992) |
| Years in the top 100 | None |
| Rank in its biggest decade | #735 in the 2000s |
📍 State-Wise Distribution
People named Dillan alive today, by the state where they were born (estimate; state records start in 1910).
More people named Dillan were born in California than in any other state: about 670 of those alive today. Compared with the national rate in the same years, Dillan was given 2.7 times as often in Louisiana, 2.3 times in Utah and 1.9 times in Alabama.
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