Its utilization is widely spread in all big cities and tourist destinations in Mexico. You should not have any problem with your credit cards, let alone secluded towns and rural areas; in these cases we recommend to ask if your credit card will be admitted before making any purchase.
You would also have to keep in mind that in certain establishments an official identification could be asked for (passport, drivers license or other) in which your photograph, name and signature appears, as a safety measure and to prevent any deceit from the customer.
In Mexico, credit card vouchers are valued in pesos, as stipulated by a legal disposition. But within your banking account, this number will be in dollars or in your homeland present currency.
Visa, Diners Club, Master Card and American Express are the most accepted credit cards in Mexico.
On the other hand, the principal banks have 24 hour operating automatic cashiers where you would be able to withdraw money using your international cards without further inconvenience. Nevertheless, in faraway locations banking transactions can take a little longer, specially when using your plastic cards.
In case of losing or robbery of your cards you must call:
VISA: 001 (800)847-2911
MASTER CARD: 001 (800) 307-7309
AMERICAN EXPRESS: 001 (800) 504 0400