Castiel Boy
How popular is Castiel?
#1,008 boy name in 2025
224 baby boys were named Castiel in the US in 2025, making it the 1008th most popular boy name.
Castiel popularity over time
Boys Girls
| Rank in 2025 | #1,008 for boys (▼ 191 from 2024) |
|---|---|
| Babies in 2025 | 224 boys |
| 10-year trend | Falling (-19% babies vs 2015) |
| Earlier ranks | #821 in 2015, #886 in 2020 |
| Peak year | 2019 (337 boys) |
| Highest rank | #723 in 2019 |
| First recorded | 2009 |
| Boys vs girls (last 10 years) | 99% boys, 1% girls |
| Chance a classmate shares it | 0.2% in a class of 25 kids born in 2025 |
Castiel counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Castiel family of names ranked #900 for boys in 2025 (#748 the year before), with 238 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Castiel | 224 | 94% |
| Kastiel | 14 | 6% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Castiel is most popular
Babies named Castiel per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- New Mexico: 0.4 per 1,000 (13 boys)
- Arizona: 0.4 per 1,000 (62 boys)
- Nevada: 0.3 per 1,000 (19 boys)
- Texas: 0.2 per 1,000 (206 boys)
- Colorado: 0.2 per 1,000 (28 boys)
Castiel by decade
Boy names about as popular as Castiel
Questions
- Is Castiel a boy or girl name?
- Castiel is mostly a boy name. Over the last 10 years, 99% of babies named Castiel were boys.
- How popular is the name Castiel?
- 224 baby boys were named Castiel in the US in 2025, making it the 1008th most popular boy name.
- When was Castiel most popular?
- Castiel peaked in 2019, when 337 boys were given the name. Its highest rank was #723 in 2019.
- How many people are named Castiel?
- 3,924 babies have been named Castiel in the US since 1880. We estimate about 3,903 of them are alive in 2026, with a median age of 7.
- Where is Castiel most popular?
- From 2021 to 2025, Castiel was most common in New Mexico, at 0.4 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.