The Otomi is an indigenous people inhabiting a discontinuous territory in central Mexico. have occupied the Mexican Plateau for several millennia before the Christian era. Currently, the Otomi inhabiting a fragmented region extending north of Guanajuato southeast of Tlaxcala. However, most of them concentrated in the states of Hidalgo, Mexico and Querétaro. their ethnic Otomi population numbered 646,875 people in Mexico in 2000, making them the fifth largest indigenous group in the country.