Are There US States That Aren't Officially States? No.

All 50 United States are fully, equally, and officially states. There is no category of "unofficial state" or "partially recognized state" within the US federal system.

Common Confusions

• Territories: Puerto Rico, Guam, USVI, American Samoa, CNMI—these are not states. They lack voting representation in Congress and Electoral College votes.
• Commonwealths: Kentucky, Massachusetts, Pennsylvania, Virginia use "Commonwealth" in their official names. They are states—legally identical.
• DC: Federal district, not a state. 23rd Amendment gives 3 electoral votes.
• Native nations: Tribal sovereignty exists within state boundaries, not as states.

Statehood Is Binary

Article IV, Section 3: "New States may be admitted by the Congress into this Union." Once admitted, a state has equal sovereignty. No probationary period. No tiered status. The last admissions: Alaska (Jan 1959), Hawaii (Aug 1959).

So: 50 states. All official. All equal. Zero exceptions.