About San Marcos
- About 13,000 people live in San Marcos.
- It's part of Guerrero.
- Mexico City, the largest city in Mexico, is about 294 km away.
- For a bigger city, Acapulco de Juárez is about 56 km away.
- Towns nearby: Cruz Grande (29 km), Ayutla de los Libres (36 km) and Tres Palos (42 km).