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It is located between the parallels 99° 27’ 51” and 99° 37’ 32” west longitude, and 18° 41’ 35” and 18° 55’ 22” north latitude. Zumpahuacán borders Tenancingo. It covers a total surface area of 201.54 km² at an altitude of 6,634 ft. In the year 2005 census by INEGI, it reported a population of 16,149.
The economy is principally farming, cattle raising and small businesses, concentrating on the production of corn, beans and fruit. Tourists are attracted by its climate and some notable churches, as well as some ecotourism attractions. It has an unexplored archeological zone.