Mexico's Boundary: The US-Mexico Border

The primary international boundary for Mexico is the United States–Mexico border.

• Length: 3,169 km (1,970 miles)
• Character: Political, economic, cultural divide since mid-19th century (Treaty of Guadalupe Hidalgo, Gadsden Purchase).
• Region: Highly populated, vibrant cross-border culture, trade, migration.

Mexico also shares borders with Guatemala and Belize to the south.