The Republic for Which It Stands: The United States during Reconstruction and the Gilded Age, 1865-1896 (Oxford History of the United States)

by Richard White

A high percentage of immigrants moved into the Middle Border and West, making them the states and territories with the largest percentage of immigrants. By 1890 44.6 percent of the population of North Dakota was of foreign birth; in South Dakota the figure was 27.7 percent. California had 30.3 percent and Washington had 25.8 percent.