Kingiseppsky District is an administrative and municipal district (raion), one of the seventeen in Leningrad Oblast, Russia. It is located in the southwest of the oblast and borders with Ida-Viru County of Estonia in the west, Lomonosovsky District in the northeast, Volosovsky District in the east, and with Slantsevsky District in the south. In the north and northwest it is washed by the waters of the Gulf of Finland. The area of the district is 2,908 square kilometers (1,123 sq mi). Its administrative center is the town of Kingisepp. Population : 19,830 (2010 Russian census); 20,408 ; 34,081 (1989 Soviet census).. Including the entire district: 78,183 (2010 Russian census);.

Lomonosovsky District is an administrative and municipal district (raion), one of the seventeen in Leningrad Oblast, Russia. It is located in the west of the oblast and borders with Petrodvortsovy and Krasnoselsky Districts of the Federal city of Saint Petersburg in the east, Gatchinsky District in the southeast, Volosovsky District in the south, Kingiseppsky District in the southwest, and the city of oblast significance of Sosnovy Bor in the west. In the north, the district is bounded by the Gulf of Finland. The area of the district is 1,919 square kilometers (741 sq mi). Its administrative center is the town of Lomonosov. Population: 70,245 (2010 Russian census); 65,297 ; 66,104 (1989 Soviet census).