The country that borders Arizona is Mexico. Arizona has a total area of 113,990 square kilometers with a total population of more than 6 million people while Mexico has a total area of 1,972,550 square kilometers and a total population of more than 100 million people. Aside from Mexico, Arizona is bordered by New Mexico, Utah, Nevada and California. However, for the purpose of answering the question, we will discuss the border between Arizona and Mexico.
Arizona’s border with Mexico stretches 629 kilometers on the Mexican states of Baja California and Sonora. There are many border crossings in Arizona and Mexico such as San Luis, Arizona-San Luis Rio Colorado, Sonora crossing, Lukeville, Arizona-Sonoyta, Sonora crossing, Sasabe, Arizona-Nogales, Sonora corssing, Naco, Arizona-Naco, Sonora crossing, Douglas and Arizona-Agua Prieta, Sonora crossing.