The Civil Rights Act (1866) was passed by Congress on 9th April 1866 over the veto of President Andrew Johnson.
Square Miles of United States. The square miles of United States is 3,794,101 sq mi. This is equivalent to 9,826,675 km2. In terms of size comparison, it is slightly larger than the Peopleâs Republic of China. The 2010 estimated population is 310,931,000.
A square mile is a unit of area in both US Customary Units as well as the Imperial System. The symbol for square mile is mi2 or sq mi. There are 0.0015625 square miles in an acre. A square mile is calculated as the area of a square that has 1 mile on each side.