Regency. Since that time, Serang City is a semi-enclave within Serang Regency, as the city borders the regency in the south, east, and west, while it borders with Java Sea in the north.

The City of Serang is divided into six districts (kecamatan), tabulated below with their areas and their populations at the 2010 Census and the 2020 Census, together with the official estimates as of mid-2023. The table also includes