Lanja is a small town located at 16°51′N 73°33′E / 16.85°N 73.55°E. It has an average elevation of 166 metres. It's a Taluka head in Ratnagiri district. National highway popularly known as Mumbai-Goa Highway passes through it. Nearest rail head is Adavali on Konkan railway which is around 15 km away.