Non-voting Delegations
- American Samoa, 1978–present
- District of Columbia, 1871–1875, 1971–present
- Guam, 1970–present
- Northern Mariana Islands, 2009–present
- Puerto Rico, 1901–present
- United States Virgin Islands, 1970–present
- Southwest Territory 1794–1796 (obsolete since statehood as Tennessee)
- Northwest Territory 1799–1803 (obsolete since statehood as Ohio)
- Orleans Territory 1806–1812 (obsolete since statehood as Louisiana)
- Dakota Territory 1861–1889 (obsolete since statehood as North Dakota and South Dakota)
- Philippines 1907–1946 (obsolete since independence)
Read more about this topic: United States Congressional Districts