Answer:
The state of México is bordered only by other federated entities of the country (Querétaro, Hidalgo, Tlaxcala, Puebla, Distrito Federal, Morelos, Guerrero, and Michoacán).
From north to south, the Mexican states touching the Gulf of Mexico are Tamaulipas, Veracruz-Llave, Tabasco, Campeche, Yucatán, and Quintana Roo.