
- English
- German
- Irish
- Italian
- Spanish
- French
- Dutch
- Norwegian
- Portuguese
- Finnish
- Polish
- Czech
From the census website:
Among those who identified as White alone or in combination, English (46.6 million), German (45 million), and Irish (38.6 million) were the largest groups.
Several other alone or in any combination groups had at least 8 million people: Italian (16.8 million), Polish (8.6 million), Scottish (8.4 million), and French (8.0 million).
An additional 11 detailed White alone or in any combination groups had at least 1 million people, including Swedish (3.8 million), Norwegian (3.8 million), and Dutch (3.6 million)
Key Map Observations:
- Regional Trends:
- English Ancestry (Yellow):
- Most prominent across much of the South and western regions of the United States.
- Indicates earlier Anglo-Saxon settlers or self-identifying “American” ancestry, which is often tied to English roots.
- German Ancestry (Blue):
- Irish Ancestry (Green):
- Particularly dominant in parts of the Northeast (e.g., Massachusetts) and areas with historical Irish immigration.
- Italian Ancestry (Red):
- Concentrated in specific counties, especially in the Northeast (e.g., New York, New Jersey, Rhode Island).
- Spanish Ancestry (Brown):
- Found in southern and western counties, particularly in Texas, New Mexico, and Arizona, reflecting the Hispanic and Spanish colonial heritage of these areas.
- French Ancestry (Purple):
- Most common in southern Louisiana, reflecting the Cajun and Creole populations rooted in French settlement and on the border with Quebec.
- English Ancestry (Yellow):
- Less Common Ethnicities:
- Dutch (Light Orange): Seen in small pockets, typically in the Midwest and parts of Michigan.
- Norwegian (Dark Green): Dominates in small parts of the northern Midwest, such as Minnesota and North Dakota.
- Portuguese, Finnish, Polish, Czech (Various Colors): Found in smaller, localized areas where specific immigrant groups settled historically.
In terms of number of counties from the US census:
- English alone or in any combination: 2,050
- German: over 1,000
- Irish: 80
- Norwegian: 15








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