Indiana and Illinois
Springfield, Illinois and Frankford, Kentucky are the capitals of two states that border the Mississippi River.
Wisconsin!Wisconsin does NOT share a river border with Illinois, BUT Iowa, Kentucky, and Missouri do.
The Mississippi River forms the wavy western border of Illinois. And the Ohio Wabash River is the southern border of Illinois.
The 3 states that the Ohio River borders are,Ohio, Indiana and Illinois.
Mississippi, Tennessee, Illinois and Wisconsin.
Illinois and Kentucky. Illinois is north of the Ohio River and east of the Mississippi river. Kentucky is south of the Ohio River and east of the Mississippi River.(Missouri is on the west bank of the Mississippi and does not border the Ohio River.)
The river that forms the western border of Illinois is the Mississippi River.
The Mississippi River forms the Western border of the States of Illinois, Tennessee, and Mississippi. The Mississippi River forms the Eastern border of the States of Iowa, Missouri, Arkansas, and Louisiana.
The Mississippi River forms the western border of Illinois.
There are ten states that border the Mississippi, Minnesota, Louisiana, Wisconsin, Illinois, Kentucky, Tennessee, Iowa and Arkansas.
The Mississippi River is the largest river and it is the western border of Illinois. The Ohio and Wabash Rivers are the southern border of Illinois. The Illinois River is the largest internal river in Illinois.