| Białobrzegi County | |
| Native Name: | Powiat białobrzeski |
| Settlement Type: | County |
| Total Type: | Total |
| Image Map1: | POL powiat bialobrzeski map.svg |
| Map Caption1: | Division into gminas |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Area Total Km2: | 639.28 |
| Population Total: | 33524 |
| Population As Of: | 2019 |
| Population Density Km2: | auto |
| Population Urban: | 7836 |
| Population Blank1 Title: | Rural |
| Population Blank1: | 25688 |
| Coor Pinpoint: | Białobrzegi |
| Coordinates: | 51.65°N 77°W |
| Seat: | Białobrzegi |
| Parts Type: | Gminas |
| Parts: | Total 6 |
| P1: | Gmina Białobrzegi |
| P2: | Gmina Promna |
| P3: | Gmina Radzanów |
| P4: | Gmina Stara Błotnica |
| P5: | Gmina Stromiec |
| P6: | Gmina Wyśmierzyce |
| Blank Name: | Car plates |
| Blank Info: | WBR |
| Website: | http://www.bialobrzegipowiat.pl |
Białobrzegi County (pl|powiat białobrzeski) is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-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 Białobrzegi, which lies 63km (39miles) south of Warsaw. The only other town in the county is Wyśmierzyce, lying 100NaN0 west of Białobrzegi.
The county covers an area of 639.28km2. As of 2019 its total population is 33,524, out of which the population of Białobrzegi is 6,951, that of Wyśmierzyce is 885, and the rural population is 25,688.[1]
Białobrzegi County is bordered by Grójec County to the north, Kozienice County to the east, Radom County to the south and Przysucha County to the south-west.
The county is subdivided into six gminas (two urban-rural and four rural). These are listed in the following table, in descending order of population.
| Gmina | Type | Area (km2) | Population (2019) | Seat |
| Gmina Białobrzegi | urban-rural | 78.9 | 10,300 | Białobrzegi |
| Gmina Stromiec | rural | 156.5 | 5,664 | Stromiec |
| Gmina Promna | rural | 120.7 | 5,573 | Promna |
| Gmina Stara Błotnica | rural | 96.2 | 5,321 | Stara Błotnica |
| Gmina Radzanów | rural | 82.6 | 3,900 | Radzanów |
| Gmina Wyśmierzyce | urban-rural | 104.3 | 2,766 | Wyśmierzyce |