German immigrants as percent of total population by state, 1890

From: Marianne S. Wokeck, Trade in Strangers: The Beginnings of Mass Migration to North America (University Park, PA: Pennsylvania State University Press, 1999), 45-46; Hans-Juergen Grabbe, Vor der grossen Flut: Die europaeische Migration in die Vereinigten Staaten von Amerika, 1783-1820 (Stuttgart: Franz Steiner Verlag, 2001), 58