Nunningen has an area, as of 2009, of 10.34 square kilometers (3.99 sq mi).
 Of this area, 4.28 km² (1.65 sq mi) or 41.4% is used for agricultural purposes, while 5.12 km² (1.98 sq mi) or 49.5% is forested.
  Of the rest of the land, 0.88 km² (0.34 sq mi) or 8.5% is settled (buildings or roads) and 0.01 km² (2.5 acres) or 0.1% is unproductive land.

Of the built up area, industrial buildings made up 1.1% of the total area while housing and buildings made up 4.6% and transportation infrastructure made up 2.4%.
 Out of the forested land, 47.5% of the total land area is heavily forested and 2.0% is covered with orchards or small clusters of trees.
 Of the agricultural land, 5.5% is used for growing crops and 33.9% is pastures, while 1.6% is used for orchards or vine crops.

The municipality is located in the Thierstein district.
 It consists of the village of Nunningen and the hamlets of Engi mit Mühle and Roderis.
Nunningen has an area, as of 2009, of 10.34 square kilometers (3.99 sq mi).  Of this area, 4.28 km² (1.65 sq mi) or 41.4% is used for agricultural purposes, while 5.12 km² (1.98 sq mi) or 49.5% is forested.   Of the rest of the land, 0.88 km² (0.34 sq mi) or 8.5% is settled (buildings or roads) and 0.01 km² (2.5 acres) or 0.1% is unproductive land.
Of the built up area, industrial buildings made up 1.1% of the total area while housing and buildings made up 4.6% and transportation infrastructure made up 2.4%.  Out of the forested land, 47.5% of the total land area is heavily forested and 2.0% is covered with orchards or small clusters of trees.  Of the agricultural land, 5.5% is used for growing crops and 33.9% is pastures, while 1.6% is used for orchards or vine crops.
The municipality is located in the Thierstein district.  It consists of the village of Nunningen and the hamlets of Engi mit Mühle and Roderis.
Nunningen