Border cities are cities located on the border of two countries or states. The two crossword solutions for the term 'border city' are Laredo (6 letters) and El Paso (6 letters). Laredo is a city located in Texas, USA, on the banks of the Rio Grande river, which forms the border between the United States and Mexico. El Paso is a city located in Texas, USA, on the border of the United States and Mexico, and is the largest city on the US-Mexico border.