It is situated on Madura Island, bordering on Pamekasan Regency to the east, the Java Sea to the north, Bangkalan Regency to the west, and Madura Strait to the south.

[1] The administrative centre is the port of Sampang, on the south coast of Madura.

Note: (a) Sampang District includes the small island of Pulau Mandangin, off the south coast of Madura.

(b) comprises 6 kelurahan (Banyuanyar, Dalpenang, Gunung Sekar, Karang Dalem, Polagan and Rong Tengah) and 12 desa.

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