In Mexico there are also large populations of German ancestry, mainly in the cities of: Mexico City, Puebla, Mazatlán, Tapachula, Ecatepec de Morelos, and larger populations scattered in the states of Chihuahua, Durango, and Zacatecas. In the United States, the states of North Dakota and South Dakota are the only states where German is the most common language spoken at home after English. German geographical names can be found throughout the Midwest region of the country, such as New Ulm and many other towns in Minnesota; Bismarck (North Dakota's state capital), Munich, Karlsruhe, and Strasburg (named after a town near Odessa in Ukraine) in North Dakota; New Braunfels, Fredericksburg, Weimar, and Muenster in Texas; Corn (formerly Korn), Kiefer and Berlin in Oklahoma; and Kiel, Berlin, and Germantown in Wisconsin. Between 1843 and 1910, more than 5 million Germans emigrated overseas, mostly to the United States. German remained an important language in churches, schools, newspapers, and even the administration of the United States Brewers' Association through the early 20th century, but was severely repressed during World War I. Over the course of the 20th century, many of the descendants of 18th century and 19th century immigrants ceased speaking German at home, but small populations of speakers are still found in Pennsylvania (Amish, Hutterites, Dunkards and some Mennonites historically spoke Hutterite German and a West Central German variety of German known as Pennsylvania German or Pennsylvania Dutch), Kansas (Mennonites and Volga Germans), North Dakota (Hutterite Germans, Mennonites, Russian Germans, Volga Germans, and Baltic Germans), South Dakota, Montana, Texas (Texas German), Wisconsin, Indiana, Oregon, Oklahoma, and Ohio (72,570). A significant group of German Pietists in Iowa formed the Amana Colonies and continue to practice speaking their heritage language. Early twentieth century immigration was often to St. Louis, Chicago, New York, Milwaukee, Pittsburgh and Cincinnati. The dialects of German which are or were primarily spoken in colonies or communities founded by German-speaking people resemble the dialects of the regions the founders came from. For example, Hutterite German resembles dialects of Carinthia. Texas German is a dialect spoken in the areas of Texas settled by the Adelsverein, such as New Braunfels and Fredericksburg.