Legionowo County is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. It came into being on 1 January 1999 as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Legionowo, which lies 22 kilometres (14 mi) north of Warsaw. The only other town in the county is Serock, lying 17 km (11 mi) north-east of Legionowo.
Grójec County 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 Grójec, which lies 40 kilometres (25 mi) south of Warsaw. The county contains three other towns: Warka, 25 km (16 mi) east of Grójec, Nowe Miasto nad Pilicą, 34 km (21 mi) south-west of Grójec, and Mogielnica, 22 km (14 mi) south-west of Grójec.
Mińsk County is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. It was (re)created on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Mińsk Mazowiecki, which lies 39 kilometres (24 mi) east of Warsaw. The county contains three other towns: Sulejówek, 21 km (13 mi) west of Mińsk Mazowiecki, Halinów, 16 km (10 mi) west of Mińsk Mazowiecki, and Kałuszyn, 17 km (11 mi) east of Mińsk Mazowiecki.
Pruszków County 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 Pruszków, which lies 15 kilometres (9 mi) west of Warsaw. The county also contains the towns of Piastów, lying 4 km (2 mi) north-east of Pruszków, and Brwinów, 7 km (4 mi) south-west of Pruszków.
Warsaw West County 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. In spite of its name, the county does not include any part of the city of Warsaw proper.
Maków County 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 Maków Mazowiecki, which lies 73 kilometres (45 mi) north of Warsaw. The only other town in the county is Różan, lying 20 km (12 mi) east of Maków Mazowiecki.
Żyrardów County is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. It came into being on 1 January 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Żyrardów, which lies 43 kilometres (27 mi) south-west of Warsaw. The only other town in the county is Mszczonów, lying 11 km (7 mi) south-east of Żyrardów.
Otwock County 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 Otwock, which lies 22 kilometres (14 mi) south-east of Warsaw. The county also contains the towns of Józefów, lying 3 km (2 mi) north-west of Otwock, and Karczew, 4 km (2 mi) south of Otwock.
Grodzisk Mazowiecki County is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. It came into being on 1 January 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Grodzisk Mazowiecki, which lies 29 kilometres (18 mi) south-west of Warsaw. The county also contains the towns of Milanówek, lying 2 km (1 mi) north-east of Grodzisk Mazowiecki, and Podkowa Leśna, 8 km (5 mi) east of Grodzisk Mazowiecki.
Gostynin County 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 only town is Gostynin, which lies 107 kilometres (66 mi) west of Warsaw.
Piaseczno County 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 Piaseczno, which lies 17 kilometres (11 mi) south of Warsaw. The county contains three other towns: Konstancin-Jeziorna, 8 km (5 mi) east of Piaseczno, Góra Kalwaria, 18 km (11 mi) south-east of Piaseczno, and Tarczyn, 16 km (10 mi) south-west of Piaseczno.
Przasnysz County 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 Przasnysz, which lies 90 kilometres (56 mi) north of Warsaw. The only other town in the county is Chorzele, lying 26 km (16 mi) north of Przasnysz. The county covers an area of 1,217.82 square kilometres (470.2 sq mi). As of 2019 its total population is 52,616, out of which the population of Przasnysz is 17,264, that of Chorzele is 3,088, and the rural population is 32,324.
Przysucha County 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 only town is Przysucha, which lies 98 kilometres (61 mi) south of Warsaw.
Nowy Dwór Mazowiecki County 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 Nowy Dwór Mazowiecki, which lies 33 kilometres (21 mi) north-west of Warsaw. The county also contains the towns of Nasielsk, lying 21 km (13 mi) north-east of Nowy Dwór Mazowiecki, and Zakroczym, 5 km (3 mi) west of Nowy Dwór Mazowiecki. Warsaw-Modlin Airport is located within the county. The county covers an area of 691.65 square kilometres (267.0 sq mi). As of 2019 its total population is 79,256, out of which the population of Nowy Dwór Mazowiecki is 28,649, that of Nasielsk is 7,702, that of Zakroczym is 3,196, and the rural population is 39,709.
Pułtusk County is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. It came into being on 1 January 1999 as a result of the Polish local government reforms passed in 1998. Its administrative seat and only town is Pułtusk, which lies 54 kilometres (34 mi) north of Warsaw.
Płońsk County 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 Płońsk, which lies 63 kilometres (39 mi) north-west of Warsaw. The only other town in the county is Raciąż, lying 25 km (16 mi) north-west of Płońsk.
Płock County 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 is the city of Płock, although the city is not part of the county. The county contains three towns: Gąbin, 17 km (11 mi) south of Płock, Drobin, 29 km (18 mi) north-east of Płock, and Wyszogród, 39 km (24 mi) south-east of Płock.
Opoczno County is a unit of territorial administration and local government (powiat) in Łódź Voivodeship, south-east 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 Opoczno, which lies 72 kilometres (45 mi) south-east of the regional capital Łódź. The only other town in the county is Drzewica, lying 15 km (9 mi) north-east of Opoczno.
Łowicz County is a unit of territorial administration and local government (powiat) in Łódź Voivodeship, 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 only town is Łowicz, which lies 48 kilometres (30 mi) north-east of the regional capital Łódź.
Skierniewice County is a unit of territorial administration and local government (powiat) in Łódź Voivodeship, 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 is the city of Skierniewice, although the city is not part of the county ; there are no towns within the county.
Poland 
