and Northern Irish ancestry also.

Demographers regard current figures as a "serious under-count", as a large proportion of Americans of British descent have a tendency to simply identify as 'American' since 1980 where over 13.3 million or 5.9% of the total U.S. population self-identified as "American" or "United States", this was counted under "not specified". This response is highly overrepresented in the Upland South,