Washington DC has more population than two states, Wyoming and Vermont, and not much lower than Alaska and North Dakota.
Washington DC has a higher educational and income level than the above named states.
Washington DC had a proposed statehood amendment passed through Congress in 1978 that failed to be ratified within the seven year limit, only gaining 16 states approval.
The 23rd Amendment, giving DC residents the right to vote for President, and giving DC three electoral votes, was ratified in 1961, and in 1964, for the first time, DC participated in the Presidential Election of 1964.
In a 2016 DC Statehood referendum, 85 percent of the residents in DC supported statehood.
DC would be first in Gross Domestic Product Per Capita (nearly two and a half times the next state), and first in Educational Attainment, with 60 percent having an advanced degree, and 34 percent having a bachelor’s degree.