United States Land boundaries

Land boundaries: total: 12,034 km
border countries: Canada 8,893 km (including 2,477 km with Alaska), Mexico 3,141 km
note: US Naval Base at Guantanamo Bay, Cuba is leased by the US and is part of Cuba; the base boundary is 28 km

Definition: This entry contains the total length of all land boundaries and the individual lengths for each of the contiguous border countries.

Source: CIA World Factbook - Unless otherwise noted, information in this page is accurate as of May 16, 2008