It was the seat of a castellan and a county, but in the late 14th century, Sieciechów's importance diminished, and it was replaced as administrative center of this part of Lesser Poland by quickly-developing Radom.

In the times of the Piast dynasty, Sieciechów was the seat of local dukes, and first mention of the village dates back to the 10th century.

In the late Middle Ages, Sieciechów was located on a merchant trail from Sandomierz through Zawichost, to Lithuanian lands.

In 1432 King Władysław Jagiełło gave permission for fairs, but period of prosperity ended after the change of the course of the Vistula.

Sieciechów remained a town until 1869, when the government of Russian-controlled Congress Poland reduced it to the status of a village.