Which state shares a border with Canada?

Maine shares a border with Canada, making it the correct answer to this question. Located in the northeastern part of the United States, Maine is bordered by the Canadian provinces of New Brunswick and Quebec. This geographical proximity not only allows for cultural and economic exchanges but also highlights the historical ties between the regions.

On the other hand, California, Texas, and Florida do not share a border with Canada. California is located on the western coast of the U.S., bordered by the Pacific Ocean to the west and adjacent to Mexico to the south. Texas also shares a border with Mexico and is located to the south of the U.S. California and Texas are both far removed from the northern borders of the United States. Florida, positioned in the southeastern U.S., is bordered by the Atlantic Ocean to the east and the Gulf of Mexico to the west, providing a maritime boundary rather than a land border with Canada. Therefore, Maine is the only state listed that directly shares a land border with Canada.