Develier is a municipality in the district of Delémont in the canton of Jura in Switzerland.

[5] The municipality is located in the Delemont district, on the Delemont-Porrentruy road which runs over the Les Rangiers pass.

The blazon of the municipal coat of arms is Gules, a Semi Lion rampant Or langued Argent issuant from Coupeaux of six of the last.

[9] Most of the population (as of 2000[update]) speaks French (1,175 or 93.8%) as their first language, German is the second most common (33 or 2.6%) and Italian is the third (15 or 1.2%).

[9] The historical population is given in the following chart:[3][13] In the 2007 federal election the most popular party was the SPS which received 34.79% of the vote.

In the federal election, a total of 374 votes were cast, and the voter turnout was 41.8%.

[9] There were 622 residents of the municipality who were employed in some capacity, of which females made up 43.4% of the workforce.

In 2008[update] the total number of full-time equivalent jobs was 337.

In the tertiary sector; 93 or 62.8% were in wholesale or retail sales or the repair of motor vehicles, 12 or 8.1% were in the movement and storage of goods, 9 or 6.1% were in a hotel or restaurant, 3 or 2.0% were technical professionals or scientists, 16 or 10.8% were in education.

[9] From the 2000 census[update], 944 or 75.3% were Roman Catholic, while 159 or 12.7% 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.

[17] During the 2009-10 school year, there were a total of 130 students attending 8 classes in Develier.