Ethnic in the United States has not changed very much in the last few hundred years when the US was just formed. The Populations of English, french, and spanish havn’t changed location. English populations have consolidated to the New England region. The spanish Population is mostly consolidated to the south west. Also the French are located close to the French-Canadian city of Quebec and also in Louisiana. What this connects too is the original ethnic areas of the United States when the country was still just colonies and settlements. Such settlements as Fort Maurepas, a french settlement in louisiana, or Boston Massachusetts, and St. Augustine the oldest settlement in the United States founded by the Spanish.
