Ostrowiec County Powiat ostrowiecki
County
Flag Coat of arms
Location within the voivodeship
Coordinates (Ostrowiec Świętokrzyski): 50°56′N 21°24′E / 50.933°N 21.400°E / 50.933; 21.400
Country	Poland
Voivodeship	Świętokrzyskie
Seat	Ostrowiec Świętokrzyski
Gminas	Total 6 (incl. 1 urban) Ostrowiec Świętokrzyski Gmina Bałtów Gmina Bodzechów Gmina Ćmielów Gmina Kunów Gmina Waśniów
Area
• Total	616.33 km2 (237.97 sq mi)
Population  (2019)
• Total	109,512
• Density	180/km2 (460/sq mi)
• Urban	74,620
• Rural	34,892
Car plates	TOS
Website	http://www.ostrowiec.starostwo.gov.pl/

Ostrowiec County (Polish: powiat ostrowiecki) 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 Ostrowiec Świętokrzyski, which lies 56 kilometres (35 mi) east of the regional capital Kielce. The county also contains the towns of Ćmielów, lying 10 km (6 mi) south-east of Ostrowiec Świętokrzyski, and Kunów, 9 km (6 mi) west of Ostrowiec Świętokrzyski.

The county covers an area of 616.33 square kilometres (238.0 sq mi). As of 2019 its total population is 109,512, out of which the population of Ostrowiec Świętokrzyski is 68,641, that of Ćmielów is 3,012, that of Kunów is 2,967, and the rural population is 34,892.^[1]

Ostrowiec County is bordered by Lipsko County to the north, Opatów County to the south, and Kielce County and Starachowice County to the west.

The county is subdivided into six gminas (one urban, two urban-rural and three rural). These are listed in the following table, in descending order of population.