It functions as the central airport for the cities of Irapuato, Guanajuato, León, Salamanca and San Miguel de Allende.

In the Otomi language its name Tsinäkua means 'place of dense fog,' as a result of the columns of water vapor rising from thermal springs in the area of Comanjilla.

The territory of Silao is almost planar formed in by the Bajío, between its few important elevations, one can find the 'Cerro del Cubilete' whose altitude is 2,570 meters above sea level and is considered the geographic center of the country.

It is fed by the Magueyes, Pascuales, Hondo, and Tigre streams, as well as the Gigante River, which is its major tributary.

The climate of the city is semi-arid in the majority of the territory, with rains in the summer and an average annual temperature of 28 °C.

Silao is a center of agricultural and industrial activity in the area, with a wide variety of farm crops, produce and dairy packing plants.

A General Motors truck and SUV assembly plant which as of 2016 makes one third[3] of Chevrolet and GMC Full-size Pickups.

[6] According to the results presented by the second 'Conteo de Población y Vivienda' (census) of 2005, the municipality counts a total of 147,123 inhabitants.