Dillon
Girl name · #3673 in 2025 · Very rare
How old is the name Dillon? In official American birth records, Dillon has been tracked continuously since 1986, giving it 39 years of documented American history.
Dillon ranks #3673 among American girls' names as of 2025, with 41 newborns given the name that year. A decade ago it stood at #4853, so the name has been rising over the past ten years. Roughly one in every 43,902 girls born in 2025 was named Dillon.
The 39-year story
Dillon first appears in the Social Security records in 1986, when 7 girls received the name. Its peak came in 2020, when 61 girls were named Dillon — good for #2712 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Dillon per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Dillon against up to 5 other names.
Uniqueness: will there be another Dillon in class?
On our rarity read — which blends how common Dillon is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Dillon will likely be the only one in the room, with the occasional spelling-out as the price.
Where Dillon is most common
State-level data for Dillon is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Dillon
Statistically, parents drawn to Dillon tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Dawson, Avalon, Darlyn, Dailyn, and Lawson.
DawsonAvalonDarlynDailynLawsonDaylinLandonRaevyn
Rank history (last 25 years)
| Year | Babies named Dillon | Rank |
|---|---|---|
| 2025 | 41 | #3645 |
| 2024 | 49 | #3225 |
| 2023 | 59 | #2852 |
| 2022 | 55 | #2995 |
| 2021 | 51 | #3157 |
| 2020 | 61 | #2712 |
| 2019 | 42 | #3611 |
| 2018 | 47 | #3346 |
| 2017 | 43 | #3552 |
| 2016 | 37 | #3996 |
| 2015 | 28 | #4853 |
| 2014 | 36 | #4103 |
| 2013 | 26 | #5143 |
| 2012 | 25 | #5398 |
| 2011 | 26 | #5207 |
| 2010 | 16 | #7513 |
| 2009 | 24 | #5709 |
| 2008 | 30 | #4882 |
| 2007 | 20 | #6552 |
| 2006 | 14 | #8237 |
| 2005 | 14 | #7891 |
| 2004 | 29 | #4601 |
| 2003 | 21 | #5586 |
| 2002 | 14 | #7444 |
| 2001 | 14 | #7317 |
Frequently asked questions
How old is the name Dillon?
In official American birth records, the name Dillon first appeared in 1986 (over 39 years ago), when 7 newborn girls received the name. It has been tracked in modern national records for 39 years.
Is Dillon a popular girl name?
Dillon ranked #3673 among girls in 2025 with 41 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #4853.
When was the name Dillon most popular?
Dillon peaked in 2020, when 61 American girls received the name (ranked #2712 that year). Since 2020 the name has declined from that high.
How rare is the name Dillon?
In 2025, roughly 1 in 43,902 newborn American girls was named Dillon. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.