Castiel
Boy name · #1011 in 2025 · Rare
How old is the name Castiel? In official American birth records, Castiel has been tracked continuously since 2009, giving it 16 years of documented American history.
In 2025, 224 baby boys were named Castiel, placing it at #1011 in the official national rankings. A decade ago it stood at #821, so the name has been falling over the past ten years. Roughly one in every 8,036 boys born in 2025 was named Castiel.
The 16-year story
Castiel first appears in the Social Security records in 2009, when 13 boys received the name. Its peak came in 2019, when 337 boys were named Castiel — good for #723 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 Castiel per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Castiel against up to 5 other names.
Uniqueness: will there be another Castiel in class?
On our rarity read — which blends how common Castiel is today with its five-year momentum — the name reads as "rare". A high score means genuine rarity — your Castiel will likely be the only one in the room, with the occasional spelling-out as the price.
Where Castiel is most common
Geography matters for names, and Castiel is no exception. Adjusted for how many boys are born in each state, Castiel is most common in AZ (0.5 per 1,000), CA (0.2 per 1,000), TX (0.2 per 1,000), FL (0.1 per 1,000) — against a national average of about 0.2 per 1,000 boys. These are per-capita rates, so they show where Castiel is a genuine regional favorite rather than just where the most babies are born.
Names like Castiel
Statistically, parents drawn to Castiel tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Cassiel, Adiel, Yasiel, Abdiel, and Gadiel.
CassielAdielYasielAbdielGadielZabdielOthnielYadiel
Rank history (last 25 years)
| Year | Babies named Castiel | Rank |
|---|---|---|
| 2025 | 224 | #1008 |
| 2024 | 306 | #817 |
| 2023 | 249 | #926 |
| 2022 | 301 | #824 |
| 2021 | 301 | #809 |
| 2020 | 255 | #886 |
| 2019 | 337 | #723 |
| 2018 | 309 | #761 |
| 2017 | 286 | #798 |
| 2016 | 315 | #769 |
| 2015 | 276 | #821 |
| 2014 | 255 | #864 |
| 2013 | 210 | #948 |
| 2012 | 123 | #1367 |
| 2011 | 84 | #1738 |
| 2010 | 47 | #2579 |
| 2009 | 13 | #6436 |
Frequently asked questions
How old is the name Castiel?
In official American birth records, the name Castiel first appeared in 2009 (over 16 years ago), when 13 newborn boys received the name. It has been tracked in modern national records for 16 years.
Is Castiel a popular boy name?
Castiel ranked #1011 among boys in 2025 with 224 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #821.
When was the name Castiel most popular?
Castiel peaked in 2019, when 337 American boys received the name (ranked #723 that year). Since 2019 the name has declined from that high.
How rare is the name Castiel?
In 2025, roughly 1 in 8,036 newborn American boys was named Castiel. On our rarity scale (rarity blended with momentum) we classify it as "rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.