An article in the February 7th edition of the The Economist points out that German-Americans are America’s largest single ethnic group. The article, titled “The Silent Minority”, contends that German-Americans have blended in so well that most people don’t recognize their numbers or their impact on our culture.
Germany contributed to our holiday celebrations (e.g. Christmas trees and Easter bunnies), and gave us a taste for pretzels, hot dogs, bratwursts and sauerkraut – not to mention German beer. And many of our great companies have a German heritage. Among them are: Kohler, Pfizer, Boeing, Steinway, Levi Strauss, and Heinz.
There are about 46 million people with German ancestry in the USA. You can see a map showing counties where German-Americans are the largest ethnic group, and read the whole article, using this link: http://www.economist.com/news/united-states/21642222-americas-largest-ethnic-group-has-assimilated-so-well-people-barely-notice-it?fsrc=email_to_a_friend.
The article also mentions the German-American Heritage Museum in Washington, DC. You can learn more about that here: http://gahmusa.org.