NEW — According to a report from NBC News, The 10 most "sinful" cities in America are as follows:

Las Vegas, Nevada
Houston, Texas
Los Angeles, California
Atlanta, Georgia
Philadelphia, Pennsylvania
Denver, Colorado
Phoenix, Arizona
Miami, Florida
Dallas, Texas
St. Louis, Missouri

The 10 least "sinful" cities:
Columbia, Maryland
Freemont, California
Port St. Lucie, Florida
Pearl City, Hawaii
Madison, Wisconsin
Cape Coral, Florida
West Valley, Utah
Bridgeport, Connecticut
South Burlington, Vermont
Fort Wayne, Indiana