The former municipalities that make up Montanaire had an area of 33.5 km² (12.93 sq mi).
 Eight of the former municipalities came from the Gros-de-Vaud District, while Chanéaz was from the Jura-Nord Vaudois District.

Chapelle-sur-Moudon had an area, as of 2009, of 4.6 square kilometers (1.8 sq mi).
 Of this area, 3.77 km² (1.46 sq mi) or 81.4% is used for agricultural purposes, while 0.6 km² (0.23 sq mi) or 13.0% is forested.
  Of the rest of the land, 0.3 km² (0.12 sq mi) or 6.5% is settled (buildings or roads).
 The former municipality is located on the left side of the Broye valley.
 It consists of the village of Chapelle-sur-Moudon and the hamlet of Combe.

Correvon had an area, as of 2009, of 2.2 square kilometers (0.85 sq mi).
 Of this area, 1.86 km² (0.72 sq mi) or 83.0% is used for agricultural purposes, while 0.28 km² (0.11 sq mi) or 12.5% is forested.
  Of the rest of the land, 0.05 km² (12 acres) or 2.2% is settled (buildings or roads).
 The former municipality is located on a plateau between the Broye and Mentue rivers.

Denezy had an area, as of 2009, of 3.8 square kilometers (1.5 sq mi).
 Of this area, 2.73 km² (1.05 sq mi) or 72.0% is used for agricultural purposes, while 0.88 km² (0.34 sq mi) or 23.2% is forested.
  Of the rest of the land, 0.2 km² (0.077 sq mi) or 5.3% is settled (buildings or roads).
 The former municipality is located on the road between Lausanne and Estavayer.

Martherenges had an area, as of 2009, of 0.8 square kilometers (0.31 sq mi).
 Of this area, 0.5 km² (0.19 sq mi) or 60.2% is used for agricultural purposes, while 0.29 km² (0.11 sq mi) or 34.9% is forested.
  Of the rest of the land, 0.04 km² (9.9 acres) or 4.8% is settled (buildings or roads).
 The small former municipality is located on a hill on the left side of the Broye valley.

Neyruz-sur-Moudon had an area, as of 2009, of 3.5 square kilometers (1.4 sq mi).
 Of this area, 2.46 km² (0.95 sq mi) or 69.9% is used for agricultural purposes, while 0.93 km² (0.36 sq mi) or 26.4% is forested.
  Of the rest of the land, 0.12 km² (30 acres) or 3.4% is settled (buildings or roads) and 0.01 km² (2.5 acres) or 0.3% is unproductive land.
 The former municipality is located along the Moudon to Yverdon-les-Bains road.
 It consists of the haufendorf village (an irregular, unplanned and quite closely packed village, built around a central square) of Neyruz-sur-Moudon and the settlements of La Praire, Les Rutannes and Le Moulin Tardy.

Peyres-Possens had an area, as of 2009, of 1.9 square kilometers (0.73 sq mi).
 Of this area, 0.94 km² (0.36 sq mi) or 49.0% is used for agricultural purposes, while 0.76 km² (0.29 sq mi) or 39.6% is forested.
  Of the rest of the land, 0.19 km² (0.073 sq mi) or 9.9% is settled (buildings or roads), 0.01 km² (2.5 acres) or 0.5% is either rivers or lakes.
 The former municipality is located on a hilly plateau in the mid-Jorat to the right of the Mentue river.
 It consists of the villages of Peyres and Possens.

Saint-Cierges had an area, as of 2009, of 6.4 square kilometers (2.5 sq mi).
 Of this area, 3.94 km² (1.52 sq mi) or 61.2% is used for agricultural purposes, while 2.18 km² (0.84 sq mi) or 33.9% is forested.
  Of the rest of the land, 0.31 km² (0.12 sq mi) or 4.8% is settled (buildings or roads) and 0.02 km² (4.9 acres) or 0.3% is unproductive land.
 The former municipality is located on a plateau in the Jorat between the Broye and Mentue rivers.
 It consists of the village of Saint-Cierges and the hamlets of Corrençon, Pré-de-Place and Solitude.

Thierrens had an area, as of 2009, of 8.7 square kilometers (3.4 sq mi).
 Of this area, 6.2 km² (2.4 sq mi) or 71.1% is used for agricultural purposes, while 1.97 km² (0.76 sq mi) or 22.6% is forested.
  Of the rest of the land, 0.57 km² (0.22 sq mi) or 6.5% is settled (buildings or roads).
 The former municipality is located at the crossroads of the Moudon-Yverdon and Echallens-Payerne roads.

Chanéaz had an area, as of 2009, of 1.4 square kilometers (0.54 sq mi).
 Of this area, 1.01 km² (0.39 sq mi) or 72.7% is used for agricultural purposes, while 0.36 km² (0.14 s
The former municipalities that make up Montanaire had an area of 33.5 km² (12.93 sq mi).  Eight of the former municipalities came from the Gros-de-Vaud District, while Chanéaz was from the Jura-Nord Vaudois District.
Chapelle-sur-Moudon had an area, as of 2009, of 4.6 square kilometers (1.8 sq mi).  Of this area, 3.77 km² (1.46 sq mi) or 81.4% is used for agricultural purposes, while 0.6 km² (0.23 sq mi) or 13.0% is forested.   Of the rest of the land, 0.3 km² (0.12 sq mi) or 6.5% is settled (buildings or roads).  The former municipality is located on the left side of the Broye valley.  It consists of the village of Chapelle-sur-Moudon and the hamlet of Combe.
Correvon had an area, as of 2009, of 2.2 square kilometers (0.85 sq mi).  Of this area, 1.86 km² (0.72 sq mi) or 83.0% is used for agricultural purposes, while 0.28 km² (0.11 sq mi) or 12.5% is forested.   Of the rest of the land, 0.05 km² (12 acres) or 2.2% is settled (buildings or roads).  The former municipality is located on a plateau between the Broye and Mentue rivers.
Denezy had an area, as of 2009, of 3.8 square kilometers (1.5 sq mi).  Of this area, 2.73 km² (1.05 sq mi) or 72.0% is used for agricultural purposes, while 0.88 km² (0.34 sq mi) or 23.2% is forested.   Of the rest of the land, 0.2 km² (0.077 sq mi) or 5.3% is settled (buildings or roads).  The former municipality is located on the road between Lausanne and Estavayer.
Martherenges had an area, as of 2009, of 0.8 square kilometers (0.31 sq mi).  Of this area, 0.5 km² (0.19 sq mi) or 60.2% is used for agricultural purposes, while 0.29 km² (0.11 sq mi) or 34.9% is forested.   Of the rest of the land, 0.04 km² (9.9 acres) or 4.8% is settled (buildings or roads).  The small former municipality is located on a hill on the left side of the Broye valley.
Neyruz-sur-Moudon had an area, as of 2009, of 3.5 square kilometers (1.4 sq mi).  Of this area, 2.46 km² (0.95 sq mi) or 69.9% is used for agricultural purposes, while 0.93 km² (0.36 sq mi) or 26.4% is forested.   Of the rest of the land, 0.12 km² (30 acres) or 3.4% is settled (buildings or roads) and 0.01 km² (2.5 acres) or 0.3% is unproductive land.  The former municipality is located along the Moudon to Yverdon-les-Bains road.  It consists of the haufendorf village (an irregular, unplanned and quite closely packed village, built around a central square) of Neyruz-sur-Moudon and the settlements of La Praire, Les Rutannes and Le Moulin Tardy.
Peyres-Possens had an area, as of 2009, of 1.9 square kilometers (0.73 sq mi).  Of this area, 0.94 km² (0.36 sq mi) or 49.0% is used for agricultural purposes, while 0.76 km² (0.29 sq mi) or 39.6% is forested.   Of the rest of the land, 0.19 km² (0.073 sq mi) or 9.9% is settled (buildings or roads), 0.01 km² (2.5 acres) or 0.5% is either rivers or lakes.  The former municipality is located on a hilly plateau in the mid-Jorat to the right of the Mentue river.  It consists of the villages of Peyres and Possens.
Saint-Cierges had an area, as of 2009, of 6.4 square kilometers (2.5 sq mi).  Of this area, 3.94 km² (1.52 sq mi) or 61.2% is used for agricultural purposes, while 2.18 km² (0.84 sq mi) or 33.9% is forested.   Of the rest of the land, 0.31 km² (0.12 sq mi) or 4.8% is settled (buildings or roads) and 0.02 km² (4.9 acres) or 0.3% is unproductive land.  The former municipality is located on a plateau in the Jorat between the Broye and Mentue rivers.  It consists of the village of Saint-Cierges and the hamlets of Corrençon, Pré-de-Place and Solitude.
Thierrens had an area, as of 2009, of 8.7 square kilometers (3.4 sq mi).  Of this area, 6.2 km² (2.4 sq mi) or 71.1% is used for agricultural purposes, while 1.97 km² (0.76 sq mi) or 22.6% is forested.   Of the rest of the land, 0.57 km² (0.22 sq mi) or 6.5% is settled (buildings or roads).  The former municipality is located at the crossroads of the Moudon-Yverdon and Echallens-Payerne roads.
Chanéaz had an area, as of 2009, of 1.4 square kilometers (0.54 sq mi).  Of this area, 1.01 km² (0.39 sq mi) or 72.7% is used for agricultural purposes, while 0.36 km² (0.14 s
Montanaire