Premise: The Seventeenth United States Census , conducted by the Census Bureau , determined the resident population of the United States to be 150,697,361 , an increase of 14.5 percent over the 131,669,275 persons enumerated during the 1940 Census . Detroit . The municipality of Detroit had a 2015 estimated population of 677,116 , making it the 21st-most populous city in the United States . Since reaching a peak of 1.8 million at the 1950 census , Detroit 's population has declined by more than 60 per cent . Downtown Detroit is the central business district and a residential area of the city of Detroit , Michigan , United States . The Midwestern United States , also referred to as the American Midwest or simply the Midwest , is one of the four geographic regions defined by the United States Census Bureau , occupying the northern central part of the United States of America .
Hypothesis: Detroit is the 21st-most populous city in Canada.
Label: CONTRADICTION