Washington, District of Columbia.
They had to sign up to be a part of the US
Nevada.
All of them Not a part of any US state-Wash, DC
The US state that does not have a straight line in any part of its border is Hawaii.
Wyoming is the 44th state to become part of the Union.
Not related- it is PART of the US- a state.
Florida
Texas
No
It was the third state to become part of the US.
Hawaii
It is a city within the US State of Illinois.