city, south-central Zacatecas estado (state), north-central Mexico. Formerly known simply as Jerez, the city is on the Jerez River, 6,650 feet (2,027 m) above sea level and southwest of Zacatecas, the state capital. It is the commercial and manufacturing centre for an agricultural and pastoral hinterland in which beans, quince, and apples are the principal crops and horses, pigs, sheep, and, most commonly, cattle, are the principal livestock. Tin and mercury are mined in the vicinity. Pop. (2005) urban agglom., 52,594.