There are 50 states in the United States of America. The states are Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.

The number of states has remained constant at 50 since Hawaii became the 50th state in 1959. The states have varying sizes, populations, and cultural identities, but they all have equal representation in the United States Senate and the Electoral College.

The Constitution of the United States defines the relationship between the federal government and the states, and grants certain powers to each. The Tenth Amendment to the Constitution reserves all powers not granted to the federal government to the states or to the people.

In addition to the 50 states, the United States also has several territories and possessions, including Puerto Rico, Guam, American Samoa, the U.S. Virgin Islands, and the Northern Mariana Islands. These territories and possessions have different levels of self-government and representation in the federal government.