Manisa Province is a province and metropolitan municipality in western Turkey. Its area is 13,339 km2, and its population is 1,468,279 (2022). Its neighboring provinces are İzmir to the west, Aydın to the south, Denizli to the southeast, Uşak to the east, Kütahya to the northeast, and Balıkesir to the north. The city of Manisa is the seat and capital of the province. The traffic code is 45.

İzmir Province is a province and metropolitan municipality of Turkey in western Anatolia, situated along the Aegean coast. Its capital is the city of İzmir, which is in itself composed of the province's central 11 districts out of 30 in total. To the west, it is surrounded by the Aegean Sea, and it encloses the Gulf of Izmir. Its area is 11,891 square kilometres, and its population is 4,462,056 (2022). Neighboring provinces are Balıkesir to the north, Manisa to the east, and Aydın to the south. The traffic code of the province is 35.