Learn about the 50 states of the United States of America, their abbreviations, capitals, populations, areas and admission dates. Find maps of the USA states and their locations on the world map. The United States of America is a federal republic [1] consisting of 50 states , a federal district (Washington, D.C., the capital city of the United States ), five major territories, and minor islands. [2][3] Both the states and the United States as a whole are each sovereign jurisdictions. [4] The Tenth Amendment to the United States Constitution allows states to exercise all powers of government not delegated to the federal government. Each state has its own constitution and government. All ... This article lists the 50 states of the United States . It also lists their populations, the date they became a state or agreed to the United States Declaration of Independence, their total area, land area, water area, and the number of representatives in the United States House of Representatives. Washington D.C., (Washington, District of Columbia) is a federal district and capital of the United States and is not considered a state . The United States also has sovereignty over 14 other ... USA consists of 50 states , the federal district of the District of Columbia with Washington D.C., and other […]