Cartigny has an area, as of 2009, of 4.38 square kilometers (1.69 sq mi).
 Of this area, 2.43 km² (0.94 sq mi) or 55.5% is used for agricultural purposes, while 1.28 km² (0.49 sq mi) or 29.2% is forested.
  Of the rest of the land, 0.5 km² (0.19 sq mi) or 11.4% is settled (buildings or roads), 0.13 km² (32 acres) or 3.0% is either rivers or lakes and 0.07 km² (17 acres) or 1.6% is unproductive land.

Of the built up area, housing and buildings made up 7.1% and transportation infrastructure made up 3.2%.
 Out of the forested land, 23.5% of the total land area is heavily forested and 5.7% is covered with orchards or small clusters of trees.
 Of the agricultural land, 37.0% is used for growing crops and 12.3% is pastures, while 6.2% is used for orchards or vine crops.
 Of the water in the municipality, 1.1% is in lakes and 1.8% is in rivers and streams.

The municipality is located in the center of the Swiss Champagne valley.
 It consists of the villages of Cartigny and La Petite Grave.

The municipality of Cartigny consists of the sub-sections or villages of Nant des Crues, Moulin-de-Vert, Longemalle, La Petite-Grave and Bois-de-Saint-Victor .
Cartigny has an area, as of 2009, of 4.38 square kilometers (1.69 sq mi).  Of this area, 2.43 km² (0.94 sq mi) or 55.5% is used for agricultural purposes, while 1.28 km² (0.49 sq mi) or 29.2% is forested.   Of the rest of the land, 0.5 km² (0.19 sq mi) or 11.4% is settled (buildings or roads), 0.13 km² (32 acres) or 3.0% is either rivers or lakes and 0.07 km² (17 acres) or 1.6% is unproductive land.
Of the built up area, housing and buildings made up 7.1% and transportation infrastructure made up 3.2%.  Out of the forested land, 23.5% of the total land area is heavily forested and 5.7% is covered with orchards or small clusters of trees.  Of the agricultural land, 37.0% is used for growing crops and 12.3% is pastures, while 6.2% is used for orchards or vine crops.  Of the water in the municipality, 1.1% is in lakes and 1.8% is in rivers and streams.
The municipality is located in the center of the Swiss Champagne valley.  It consists of the villages of Cartigny and La Petite Grave.
The municipality of Cartigny consists of the sub-sections or villages of Nant des Crues, Moulin-de-Vert, Longemalle, La Petite-Grave and Bois-de-Saint-Victor .
Cartigny, Switzerland