German ancestry is #1, English ancestry is #2

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Regional distribution:


English ancestry

Northeast  4,470,376
Midwest  6,597,026
South  13,017,354
West  7,740,315

American ancestry

Northeast  2,327,089
Midwest  3,143,033
South  9,604,178
West  2,551,657

German ancestry

Northeast  6,383,529
Midwest  15,961,078
South  11,578,159
West  8,297,414

Irish ancestry

Northeast  7,651,157
Midwest  7,535,454
South  10,354,771
West  5,954,515

Italian ancestry

Northeast  6,513,333
Midwest  2,665,795
South  4,011,238
West  2,756,772

I assume most of the Eastern European groups are dominant in the Midwest? This is also a reason I consider Pittsburgh Midwestern. High German and Polish populations. Also, is there any group with it's highest population in the west?

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I wonder why the Russian-American population is so low despite being the largest European country. Then there’s also Norway and Sweden, they punch way above their weight, I assume that’s somewhat due to the quotas from the 20s to the 60s but it also make me think of Svidrigailov in Crime and Punishment “I’m going to America” and all that

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Very few ethnic Russians emigrated.

In the 1930 census, 64% of those born in Russia had a Yiddish mother tongue.

https://www2.census.gov/prod2/decennial/documents/16440598v2ch08.pdf

There were also ethnic Germans.  Many Germans from Russia went to the Great Plains, especially North Dakota.  Norwegians and Germans from Russia were the main settlers of North Dakota.

The movement inside of Europe and existence of different polities is interesting in and of itself. Like I've heard amongst Jews the German ones were considered more urbane because they reformed their way of giving mass or whatever, and they lived in cities rather than mostly rural places.

You also get the Scotch-Irish and French-Canadians from this, and I guess the Hispanic population is basically this too. Also, it's really weird they grouped together English and Celtic that's like grouping German and Polish like just, why?

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Most common last names by state:

https://blogs.ancestry.com/cm/whats-the-most-popular-surname-in-your-state/

Interestingly no German surnames show up in the top three in any state, not even in Wisconsin.  Besides the obvious Spanish dominance in California, Texas and the Southwest, and Asians in Hawaii - you see a few ethnic identifiers (Sullivan in Massachusetts, Olson in North Dakota, more Johnsons and Andersons in the Upper Midwest).

Reading up on this it seems it's because names were spelled in many different ways, that or, less often they were Anglicized like Busch to Bush to Braun to Brown