Origin of the Castro Surname
The Castro surname is of Spanish origin (Spanish). In the 2010 U.S. Census it ranked #138 with 184,134 Americans (62.42 per 100K people).
What the name meant to the first families who bore it — and how Castro traveled across regions and centuries — is written out in the full Heritage Report.
Quick Facts
| Surname | Castro |
|---|---|
| Meaning | Full etymology in the Heritage Report |
| Origin | Spanish |
| Language | Spanish |
| US Rank (2010) | #138 |
| US Count (2010) | 184,134 |
| Per 100K People | 62.42 |
| First Letter | C |
Ethnic Distribution of Castro
Among 184,134 Americans named Castro, the largest self-reported group is Hispanic (87.42%).
The full multi-group chart (every percentage, print-ready) is inside the Heritage Report — not repeated here.
Popularity of Castro Over Time
Between the 2000 and 2010 U.S. Census, the national rank of Castro moved up. Exact counts for both years — print-ready — are in the Heritage Report.
Where did the Castro family really come from?
A simple cheek swab reveals your ethnic origins, maps where your Castro ancestors lived, and connects you with living relatives who share your DNA.
- 🧬 A detailed estimate of your ethnic origins
- 🗺️ See where your Castro ancestors lived & migrated
- 👪 Get matched with relatives you never knew you had
Trusted by millions who've uncovered their family story
Prefer another lab? 23andMe · MyHeritage
As an Amazon Associate we earn from qualifying purchases — at no extra cost to you.
The Complete Story of the Castro Family
What you’ve read above is just the overview. Your full Castro Heritage Report goes far deeper — and it’s yours to keep, print & share with your family.
- ✓ The true origin & meaning of Castro
- ✓ The Castro coat of arms & heraldry
- ✓ Migration journey across the world
- ✓ Where Castro families live today
- ✓ Notable Castro bearers in history
- ✓ Name variations & spellings worldwide
- ✓ A step-by-step guide to start tracing your own family tree
🎁 A heritage keepsake to pass down — perfect as a gift.
Get one Castro fact most families never hear by email — a teaser, not the full etymology (that’s in the report).
Similar Surnames to Castro
These surnames share similar popularity, spelling, or cultural background with Castro.
Other Spanish Surnames
Explore more surnames with Spanish roots. There are 162,254 surnames in our database — here are some that share the same Spanish origin as Castro.
Frequently Asked Questions About Castro
Top Surnames Starting with C
The most common American surnames that begin with the letter C, ranked by population.
Related Searches
People searching for information about the Castro surname also look for: