Florida has the longest coastline border on the Gulf of Mexico with 770 miles. In Mexico, the state of Veracruz has the longest border with the Gulf of Mexico with 463 miles.
Texas
Texas has the largest share of border with Mexico.
Texas
texas boarder
FLORIDA, United States Of America
Texas has the largest share of the US border with Mexico; 2,019 Kilometers (1,254 miles) out of the 3,141 Kilometers (1,952 miles) that conform the US-Mexico border is defined by the course of the Rio Grande River (Rio Bravo del Norte, as it is known in Mexico) which runs from Ciudad Juarez-El Paso into the Gulf of Mexico, close to the cities of Matamoros-Brownsville.
California has the longest border with Nevada.
Kentucky has the longest border with Tennessee.
Montana does not border Mexico.
Sacramento, California is the capital of the state that has the longest border on the Pacific Ocean
The U.S. state on the Gulf of Mexico with the longest name is Mississippi.