9 U.S states and 1 Canadian province.
Vermont shares borders with the U.S. states of New Hampshire, Massachusetts and New York and the Canadian province of Quebec.
British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, and Quebec are the Canadian Provinces that shares their southern border with USA.
five
Likely an error. Michigan is not a province of Canada, though Michigan has many Canadian connections and history.
One
one province: British Columbia
One (Ontario).
It is about 114 miles.
about 10 miles
The United States and Canadian border is a peaceful border that for many years was not guarded. However 9/11 changed that. Now it is required for all people crossing the border to have passports and identification papers.
The state of New York and the province of Ontario border Lake Ontario. This means the United States and Canada border the lake.