Origin of the Costigan Surname
The Costigan surname is of Irish origin (Irish Gaelic). In the 2010 U.S. Census it ranked #12,566 with 2,463 Americans (0.83 per 100K people).
What the name meant to the first families who bore it — and how Costigan traveled across regions and centuries — is written out in the full Heritage Report.
Quick Facts
| Surname | Costigan |
|---|---|
| Meaning | Full etymology in the Heritage Report |
| Origin | Irish |
| Language | Irish Gaelic |
| US Rank (2010) | #12,566 |
| US Count (2010) | 2,463 |
| Per 100K People | 0.83 |
| First Letter | C |
Ethnic Distribution of Costigan
Among 2,463 Americans named Costigan, the largest self-reported group is White (93.71%).
The full multi-group chart (every percentage, print-ready) is inside the Heritage Report — not repeated here.
Popularity of Costigan Over Time
Between the 2000 and 2010 U.S. Census, the national rank of Costigan moved down. Exact counts for both years — print-ready — are in the Heritage Report.
Where did the Costigan family really come from?
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The Complete Story of the Costigan Family
What you’ve read above is just the overview. Your full Costigan Heritage Report goes far deeper — and it’s yours to keep, print & share with your family.
- ✓ The true origin & meaning of Costigan
- ✓ The Costigan coat of arms & heraldry
- ✓ Migration journey across the world
- ✓ Where Costigan families live today
- ✓ Notable Costigan 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 Costigan fact most families never hear by email — a teaser, not the full etymology (that’s in the report).
Similar Surnames to Costigan
These surnames share similar popularity, spelling, or cultural background with Costigan.
Other Irish Surnames
Explore more surnames with Irish roots. There are 162,254 surnames in our database — here are some that share the same Irish origin as Costigan.
Frequently Asked Questions About Costigan
Top Surnames Starting with C
The most common American surnames that begin with the letter C, ranked by population.
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