New York.
Vicksburg, Mississippi sits on the east bank of the Mississippi River, on the western border of the state of Mississippi.
The borders of Wisconsin, Illinois, Kentucky, Tennessee, and Mississippi are along the east side of the Mississippi River. The river flows through Minnesota and Louisiana so that the river is on both the eastern and western banks in those states.
Vicksburg is on the eastern bank of the Mississippi River, about 80 miles upriver from Natchez.
Iowa is the only state bordering the west bank of the Mississippi River beginning with the letter I. Illinois borders the east bank of the Mississippi River.
Baton Rouge is the capital city in Louisiana. It is located on the eastern bank of the Mississippi River.
The Ohio River flows into the Mississippi River at Cairo, Illinois. The Ohio divides Illinois to the north from Kentucky to the south, and on the west bank of the Mississippi is the state of Missouri.
Both the river and the state are within the United States. The Mississippi River flows south from Minnesota, gains tributaries including the Ohio and Missouri Rivers, and flows into the Gulf of Mexico in southeast Louisiana. The state of Mississippi is on the east bank of the river, to the north and east of Louisiana.
Baton Rouge is the capital city in Louisiana. It is located on the eastern bank of the Mississippi River.
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Plaquemines Parish (county) is at the mouth of the Mississippi River, on the Gulf of Mexico southeast of New Orleans. Plaquemines Parish is divided in two by the Mississippi River. The City of Plaquemine is about fifteen miles downriver from Baton Rouge, on the opposite (west) bank of the Mississippi River. The City of Plaquemine is in Iberville Parish.
Springfield is the capital city in Missouri. It is located west of the Mississippi River.
Baton Rouge, the capital city in the U.S. state of Louisiana, is located on the eastern bank of the Mississippi River.