A few facts about San Marcos
- San Marcos has a population of about 13,000.
- It lies in the Hidalgo region.
- Mexico City, the largest city in Mexico, is about 70 km away.
- The nearest bigger city is Tepeji del Río de Ocampo, about 14 km away.
- Close by: Santa Teresa (23 km), Coyotepec (31 km) and Teoloyucan (36 km).