What is the postal abbreviation for Mississippi?

The postal abbreviation for the state of Mississippi is MS.

The United States Postal Service has established a set of abbreviations which are used to represent the political divisions of the United States for postal addresses, data processing, and other purposes.

Mississippi is a state located in the southeastern region of the United States.

Mississippi is the 32nd most extensive and 34th most populous of the 50 United States. It is bordered by Tennessee to the north, Alabama to the east, the Gulf of Mexico and Louisiana to the south, and Arkansas and Louisiana to the west. The state's western boundary is largely defined by the Mississippi River. Jackson, with a population of approximately 175,000 people, is both the state's capital and largest city.