Sandomierz County is a unit of territorial administration and local government in Świętokrzyskie Voivodeship, south-central Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Sandomierz, which lies 83 kilometres east of the regional capital Kielce. The county also contains the towns of Koprzywnica, lying 16 km south-west of Sandomierz, and Zawichost, 16 km north-east of Sandomierz.