Bannwil is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland.

[3] The area around Bannwil was inhabited during the Hallstatt era and the Early Middle Ages.

These two courts began to come under Bernese control in 1432 and by 1463 were completely part of Bern.

The railroad opened up the municipality and allowed commuters to live in Bannwil.

It consists of the villages of Bannwil, Stalden, Winkel, Bännli and Hogerrüti.

[6] The blazon of the municipal coat of arms is Gules a Trefoil Vert topped with a Mullet of Five Or.

[10] Most of the population (as of 2000[update]) speaks German (615 or 96.5%) as their first language, Serbo-Croatian is the second most common (8 or 1.3%) and Albanian is the third (7 or 1.1%).

The historical population is given in the following chart:[3][13] In the 2011 federal election the most popular party was the SVP which received 38% of the vote.

In the federal election, a total of 231 votes were cast, and the voter turnout was 44.9%.

The number of jobs in the primary sector was 29, of which 26 were in agriculture and 3 were in forestry or lumber production.

In the tertiary sector; 14 or 15.9% were in wholesale or retail sales or the repair of motor vehicles, 42 or 47.7% were in the movement and storage of goods, 5 or 5.7% were in a hotel or restaurant, 3 or 3.4% were in the information industry, 7 or 8.0% were technical professionals or scientists, 4 or 4.5% were in education.

From the 2000 census[update], 78 or 12.2% were Roman Catholic, while 470 or 73.8% belonged to the Swiss Reformed Church.

This is followed by three years of obligatory lower Secondary school where the students are separated according to ability and aptitude.

Following the lower Secondary students may attend additional schooling or they may enter an apprenticeship.

[17] During the 2009-10 school year, there were a total of 53 students attending classes in Bannwil.