Washington DC is not a state; it's district, or a big unique city. There was talk about making it the 51st state, but, that is not likely to happen anytime in the near future.
Washington isn't a state. It is a city. DC stands for the District of Columbia, in which the city resides.
Washington DC is not in a state.
Washington, DC?
Washington dc
Washington DC
Washington DC
Washington DC
Washington, DC
Washington, DC is a city. The DC that comes after the name of the city stands for the District of Columbia, which is where the city resides. The District is separate from any any state.
Washington DC (the US national capital) is part of the US but not part of any state. The capital is called the District of Columbia (DC).
Washington DC
Washington DC