Sandomierz County (Polish: powiat sandomierski) is a unit of territorial administration and local government (powiat) 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 (52 mi) east of the regional capital Kielce. The county also contains the towns of Koprzywnica, lying 16 km (10 mi) south-west of Sandomierz, and Zawichost, 16 km (10 mi) north-east of Sandomierz.
The county covers an area of 675.89 square kilometres (261.0 sq mi). As of 2019 its total population is 77,352, out of which the population of Sandomierz is 23,494, that of Koprzywnica is 2,470, that of Zawichost is 1,771, and the rural population is 49,617.
