Boncourt (French pronunciation: [bɔ̃kuʁ]) is a municipality in the district of Porrentruy in the canton of Jura in Switzerland.

[3] During the Second World War Boncourt was a vital staging post for French speaking Switzerland, and the resistance.

Of the rest of the land, 1.81 km2 (0.70 sq mi) or 20.1% is settled (buildings or roads), 0.05 km2 (12 acres) or 0.6% is either rivers or lakes.

The large industrial village is the most important border crossing between the Canton of Jura and France.

[3] The blazon of the municipal coat of arms is Gules, a Fleur de lis Or in base between two Halberds Argent in saltire.

[9] Most of the population (as of 2000[update]) speaks French (1,312 or 96.6%) as their first language, German is the second most common (29 or 2.1%) and Italian is the third (6 or 0.4%).

[9] The historical population is given in the following chart:[3][13] The Chavon-Dessous Farm House is listed as a Swiss heritage site of national significance.

[16] Boncourt is on the frontier of the Jura in Switzerland and the railway has been a major employer for over 150 years.

Upon selling his business, Charles Burrus founded Fondation Guilé, a non-profit foundation promoting corporate responsibility.

The number of jobs in the primary sector was 32, of which 29 were in agriculture and 3 were in forestry or lumber production.

In the tertiary sector; 36 or 11.0% were in wholesale or retail sales or the repair of motor vehicles, 20 or 6.1% were in the movement and storage of goods, 11 or 3.4% were in a hotel or restaurant, 1 was in the information industry, 16 or 4.9% were the insurance or financial industry, 24 or 7.4% were technical professionals or scientists, 9 or 2.8% were in education and 117 or 35.9% were in health care.

[9] From the 2000 census[update], 1,184 or 87.2% were Roman Catholic, while 82 or 6.0% 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.

[19] Boncourt is connected to the SNCF network by a single track rail, which reopened in 2009.

Boncourt is the first town on the Swiss border when traveling from Paris to Bern via Belfort.