Positioned in the northern part of Sambas Regency, The district is characterized by its diverse landscape, which includes tropical forests, rivers, and lowland areas.

Sajingan Besar operates under the jurisdiction of the Sambas Regency government, which provides oversight and coordination of development activities within the district.

Conservation efforts are ongoing to manage and protect the district's natural habitats, which are vital for local biodiversity and ecological balance.

Sajingan Besar has been experiencing gradual development in infrastructure, including improvements in transportation and public services.

[3] The district's road networks and transportation facilities are essential for connecting it with other regions of West Kalimantan and facilitating trade and mobility.