The borders of US were from Georgia in the South to the Great Lakes in the Noth. The Mississippi River formed the western border.
1 state borders Maine. That state is New Hampshire.
Mexico.
Canada is borders the US to the North, Mexico borders the US to the South at California, Arizona, New Mexico, and Texas.
No country borders the US to the west. The western border of the US is the Pacific Ocean.
New Mexico. Mexico is a country bordering the United States and New Mexico, a state in the the United States, has the same name. The only state in the US that has the name of a country that borders the US in it is New Mexico. The other country is Mexico.
Maine. It borders only New Hampshire and Canada.Maine:US states: Maine. It borders with the US state of New Hampshire, to the south-west. It also borders with two Canadian provinces, Quebec and New Brunswick. However, as neither of these are US states, then, strictly, they don't count as states.Maine.Maine
New Hampshire borders Maine to the west (the only state to border Maine), while Canada (obviously not part of the US) borders Maine to the North. Just one state borders Maine--New Hampshire
Maine. It borders only New Hampshire and Canada.Maine:US states: Maine. It borders with the US state of New Hampshire, to the south-west. It also borders with two Canadian provinces, Quebec and New Brunswick. However, as neither of these are US states, then, strictly, they don't count as states.Maine.Maine
Maine, Vermont and Massachusetts.
Vermont
Cimarron County, OK. It borders Colorado, Kansas, New Mexico, and Texas.
Louisiana, Arkansas, Oklahoma, New Mexico.