Les Ponts-de-Martel is 1009 m above sea level. M., 16 km west of the canton capital of Neuchâtel (as the crow flies). The village extends on the western edge of the Vallée des Ponts in the Neuchâtel Jura and on the adjacent slope of the anticline of the Grand Som Martel.
The area of the 18.2 km² large municipal area includes the western part of the Vallée des Ponts, which is flat here. Large areas of raised bog are preserved on the plain, which are listed as "Tourbière des Ponts-de-Martel" in the Federal Inventory of Landscapes and Natural Monuments of National Importance (BLN).[5] Peat was mined in the area from the 18th to the 20th century.[6]
The eastern boundary of the municipality is formed by the Le Bied stream, which disappears into a seepage funnel on the southern edge of the village. To the west, the municipal floor extends to the anticline separating the Vallée des Ponts from the Vallée de la Brévine. In a narrow corner in the extreme west, the area extends over the Combes Dernier valley to the Haut des Joux (1275 m asl). In the north, Les Ponts-de-Martel includes the summit of the Grand Som Martel, on which at 1337 m above sea level. M. the highest point of the municipality is reached. Here there are extensive Jura high pastures with the typical mighty spruces, which stand either individually or in groups. In 1997, 6% of the municipal area was for settlements, 31% for forest and copses, 59% for agriculture and around 4% was unproductive land.