Bichelsee-Balterswil has an area, as of 2009, of 12.27 square kilometers (4.74 sq mi).
 Of this area, 6.27 km² (2.42 sq mi) or 51.1% is used for agricultural purposes, while 4.52 km² (1.75 sq mi) or 36.8% is forested.
  Of the rest of the land, 1.18 km² (0.46 sq mi) or 9.6% is settled (buildings or roads), 0.16 km² (0.062 sq mi) or 1.3% is either rivers or lakes and 0.02 km² (4.9 acres) or 0.2% is unproductive land.

Of the built up area, industrial buildings made up 4.8% of the total area while housing and buildings made up 0.7% and transportation infrastructure made up 0.5%.
while parks, green belts and sports fields made up 3.6%.
 Out of the forested land, 35.0% of the total land area is heavily forested and 1.9% is covered with orchards or small clusters of trees.
 Of the agricultural land, 49.2% is used for growing crops, while 1.9% is used for orchards or vine crops.
 Of the water in the municipality, 0.6% is in lakes and 0.7% is in rivers and streams.

The municipality is located in the Münchwilen district.
 It consists of the villages of Bichelsee and Balterswil and the hamlets of Höfli, Niederhofen am Bichelsee, Itaslen, Zielwies, Ifwil and Lochwies.
 The lake Bichelsee is located in the municipality.
Bichelsee-Balterswil has an area, as of 2009, of 12.27 square kilometers (4.74 sq mi).  Of this area, 6.27 km² (2.42 sq mi) or 51.1% is used for agricultural purposes, while 4.52 km² (1.75 sq mi) or 36.8% is forested.   Of the rest of the land, 1.18 km² (0.46 sq mi) or 9.6% is settled (buildings or roads), 0.16 km² (0.062 sq mi) or 1.3% is either rivers or lakes and 0.02 km² (4.9 acres) or 0.2% is unproductive land.
Of the built up area, industrial buildings made up 4.8% of the total area while housing and buildings made up 0.7% and transportation infrastructure made up 0.5%. while parks, green belts and sports fields made up 3.6%.  Out of the forested land, 35.0% of the total land area is heavily forested and 1.9% is covered with orchards or small clusters of trees.  Of the agricultural land, 49.2% is used for growing crops, while 1.9% is used for orchards or vine crops.  Of the water in the municipality, 0.6% is in lakes and 0.7% is in rivers and streams.
The municipality is located in the Münchwilen district.  It consists of the villages of Bichelsee and Balterswil and the hamlets of Höfli, Niederhofen am Bichelsee, Itaslen, Zielwies, Ifwil and Lochwies.  The lake Bichelsee is located in the municipality.
Bichelsee-Balterswil