Serdang Bedagai Regency
Serdang Bedagai Regency is a regency in the Eastern shores of North Sumatra facing Malaysia, with 95 km of coastline and covering an area of 1,913.33 square kilometres, divided into 17 districts, in turn subdivided into 237 villages and 6 subdistricts Its seat is Sei Rampah. The regency surrounds the independent city of Tebing Tinggi, and also contains a district by the same name. The name “Serdang Bedagai” was derived from the two Sultanates which formerly existed in the Region; they were Serdang Sultanate and Padang Bedagai Sultanate. The population was 592,922 at the 2010 Census.Location
To the north is the Malacca Straits, to the west is Deli Serdang Regency, to the south and southeast is Simalungun Regency, and to the east are the Buaya River and Ular River bordering Batubara Regency, which was formed in 2006 from part of the Asahan Regency.Administration
The regency is divided administratively into seventeen districts, tabulated below with their areas and 2010 Census populations:
| Name | Area in
km2 | Population
Census 2010 |
| Kotarih | 83.3 | 7,975 |
| Silinda | 54.3 | 8,332 |
| Bitang Bayu | 66.9 | 10,581 |
| Dolok Masihul | 195.4 | 48,241 |
| Serbajabi | 67.5 | 19,560 |
| Sipispis | 221.9 | 31,617 |
| Dolok Merawan | 131.2 | 17,029 |
| Tebingtinggi | 145.5 | 40,253 |
| Tebing Syahbandar | 141.9 | 32,191 |
| Bandar Khalipah | 76.5 | 24,774 |
| Tanjung Beringin | 67.2 | 36,864 |
| Sei Rampah | 214.9 | 63,379 |
| Sei Bamban | 82.1 | 42,791 |
Teluk Mengkudu
| 77.1 | 41,118 |
| Pegajahan | 100.2 | 26,859 |
| Perbaungan | 118.4 | 99,936 |
| Pantai Cermin | 85.6 | 42,883 |
