* Maine: Borders Canada and New Hampshire
* Vermont: Borders Canada, New York, and New Hampshire
* Massachusetts: Borders Vermont, New Hampshire, Rhode Island, and Connecticut
* New York: Borders Vermont, Massachusetts, Connecticut, New Jersey, and Pennsylvania
* Pennsylvania: Borders New York, New Jersey, Delaware, Maryland, and West Virginia
* New Jersey: Borders New York, Pennsylvania, and Delaware
* Delaware: Borders Pennsylvania and Maryland
* Maryland: Borders Pennsylvania, Delaware, and Virginia
* West Virginia: Borders Pennsylvania, Maryland, Virginia, Ohio, and Kentucky
* Virginia: Borders West Virginia, Maryland, North Carolina, and Tennessee
* North Carolina: Borders Virginia and South Carolina
* South Carolina: Borders North Carolina and Georgia
* Tennessee: Borders Virginia, North Carolina, Mississippi, Arkansas, Alabama, and Missouri
* Georgia: Borders South Carolina, Alabama, Florida, and North Carolina