7
The Gulf of Mexico
The Ohio River forms the southern state line,and Lake Erie is on the northern boundary.
There is NO state "between New York and Vermont".
Two rivers partially form Illinois State's Eastern boundary. The Wabash River is one river that forms Illinois' boundary. The Ohio River is the other river that forms the state's boundary.
southern states
Mississippi
The state of New York is bordered on the east byConnecticut,Massachusetts, and Vermont.
The Connecticut River, which flows into Long Island Sound.
Mississippi River
Missisippi
The Mississippi River forms the western boundary of the State of Illinois.
Vermont is a state in the US.