Please specify which state you are referring to in your question.
IN is the abbreviation for the state of Indiana.
None. But it is the abbreviation of Alberta, a Canadian province.
It is not a state abbreviation in the US.
The abbreviation for the state of Missouri is MO.
The state with the abbreviation KY is Kentucky.
The abbreviation for the state of Pennsylvania is PA.
The abbreviation for the state of Alabama is AL.
MS is the abbreviation for the state of Mississippi.
IL is the state abbreviation for Illinois.
Philadelphia is a city, not a state - as such it is not eligible for a state abbreviation.
The abbreviation MO is the postal abbreviation for Missouri.
The abbreviation for the US State of Kentucky is Ky.