Created on 30 June 1818 by Pope Pius VII. Between 1981 and 1992 called the Diocese of Sandomierz-Radom. On 25 March 1992, by the bull Totus Tuus Poloniae populus, Pope John Paul II separated the Diocese of Sandomierz from the Diocese of Radom. The capital of the diocese is Sandomierz with the Cathedral of the Nativity of the Blessed Virgin Mary and the Co-Cathedral of Our Lady Queen of Poland in Stalowa Wola.