Castle
#5,428 in 2025Boys' nameMeaning not yet documented
Castle has been given to 385 babies in the U.S. since 1916. In 2025 it ranked #5,428 of 13,926 boys’ names in use. Its peak year was 2018, with 32 recorded.
Babies named Castle, 2025
1 in 195,000
Castle over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Castle?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 195,000
- 17 of 3,315,165 births
- Among boys only
- 1 in 100,000
- <0.01% of boys
- Rank, 2025
- #5,428
- of 13,926 boys’ names in use
- Coin-flip room size
- 135,172 kids
- Even odds of a second one
Where Castle sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 135,172 children born in 2025 and it's an even bet that one of them is another Castle. In a class of 30 the chance is Under 1%.
When Castles were born
Half of everyone ever recorded as Castle was born before 2017 — so the typical Castle is around 8 today.
- Biggest decade
- 2010s
- 51.2% of all use
- Born in the last 25 years
- 88.8%
- A modern name
- Recorded since 1950
- 363
- People you could plausibly meet
2010s — 51.2% of all recorded uses (197).
Is Castle rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- −1,213
- Places dropped
- Rank vs 5 years ago
- −1,269
- Places dropped
- Rank vs 10 years ago
- −1,531
- Places dropped
- Births vs 10 years ago
- 0.63×
- Fewer babies than then
- Share of its own peak
- 53.1%
- Peak was 2018 (32)
- Years since peak
- 7
- Years
- Year-to-year steadiness
- Volatile
- 34.7% average annual change
Spellings of Castle
Castle is not the most common spelling — Case is, with 42.0% against Castle's 1.6%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Castle around the world
Where Castle ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- Canada2020–2020#2,945in 2020
Popularity data from Statistics Canada. StatCan data under Statistics Canada Open Licence.
Castle by the numbers
The raw record for each sex the name is used for.
Names similar to Castle
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Castle
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.