The Top 10 cities in which adults who agree that "buying American products is important to me": 1. St. Joseph, Mo. 2. North Platte, Neb. 3. Wausau/ Rhinelander, Wisc. 4. Duluth, Minn./ Superior, Wisc. 5. Cedar Rapids/ Waterloo/ Iowa City/ Dubuque, Iowa 6. Alpena, Mich. 7. Rochester, Minn./ Mason City/ Austin, Iowa 8. Springfield, Mo. 9. Ottumwa, Iowa/ Kirksville, Mo. 10. Wheeling, W.V./ Steubenville, Ohio Source: MRI's Market-by-Market study, www.mediamark.com.