Write an article that answers the following question: How many more families are there than people per square mile?
As of the 2010 U.S. Census, there were 113,934 people, 20,502 families, and 47,060 households residing in the city. The population density was 4,093.9 people per square mile (1,580.7/km²), making it less densely populated than Detroit proper and its inner-ring suburbs like Oak Park, Michigan and Ferndale, Michigan, but more densely populated than outer-ring suburbs like Livonia, Michigan and Troy, Michigan. The racial makeup of the city was 73.0% White (U.S. Census) (70.4% non-Hispanic White), 7.7% Race and ethnicity in the United States Census, 0.3% Race and ethnicity in the United States Census, 14.4% Race and ethnicity in the United States Census, 0.0%  Race and ethnicity in the United States Census, 1.0% from Race and ethnicity in the United States Census, and 3.6% from two or more races. Race and ethnicity in the United States Census or Race and ethnicity in the United States Census residents of any race made up 4.1% of the population. Ann Arbor has a small population of Arab Americans, including  students as well as local Lebanese Americans and Palestinian Americans.