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.
According to the United States Census Bureau, the city has a total area of 5.34 square miles (13.83 km2), of which 5.33 square miles (13.80 km2) is land and 0.01 square miles (0.03 km2) is water.