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Britannica Sources used in this answer

How long is the Central American isthmus?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
Map of Central America showing country borders, capital cities, major lakes, and the Panama Canal, with shaded relief indicating elevation changes across the region.
Central America

The Central American isthmus extends in an arc approximately 1,140 miles (1,835 km) long, stretching from the northwest to the southeast.1

It is important to distinguish this from the Isthmus of Panama, which is a specific land link within the region extending about 400 miles (640 km) between the borders of Costa Rica and Colombia.2