National Geographic Feb. 2011 Pages 20-21
This two-page article includes a map of the United States with a distribution of common last names super imposed on the map. The map provides a graphical representation of immigration.
The prevalence of the names Lablanc and Fonenot in south Louisiana reflect its Acadian heritage. The same holds true for the Southwest with Spanish sounding name like Garcia, Chavez, and Rodriguez. East of the Mississippi, the map is crowded with lots of names, many of which are easily identifiable as being English/Welch/Scottish/Irish in origin. West of the Mississippi, the names become more sparse.
For more information on this project, visit this website: www.worldnames.publicprofiler.org.
You can even "map" your own names.
Everyday Genealogy Desk Calendar