Courtedoux (French pronunciation: [kuʁtədu]) is a municipality in the district of Porrentruy of the Canton of Jura, Switzerland.

Of the rest of the land, 0.8 km2 (0.31 sq mi) or 9.7% is settled (buildings or roads).

[5] The municipality is located in the Porrentruy district, on a rise above the Creugenat valley.

[9] Most of the population (as of 2000[update]) speaks French (709 or 95.9%) as their first language, German is the second most common (18 or 2.4%) and Portuguese is the third (4 or 0.5%).

[9] The historical population is given in the following chart:[3][13] In the 2007 federal election the most popular party was the CVP which received 36.78% of the vote.

In the federal election, a total of 257 votes were cast, and the voter turnout was 45.2%.

[9] There were 348 residents of the municipality who were employed in some capacity, of which females made up 43.1% of the workforce.

The number of jobs in the primary sector was 22, of which 19 were in agriculture and 3 were in forestry or lumber production.

In the tertiary sector; 10 or 27.8% were in wholesale or retail sales or the repair of motor vehicles, 6 or 16.7% were in the movement and storage of goods, 2 or 5.6% were in a hotel or restaurant, 4 or 11.1% were in the information industry, 3 or 8.3% were technical professionals or scientists, 4 or 11.1% were in education.

[9] From the 2000 census[update], 567 or 76.7% were Roman Catholic, while 85 or 11.5% 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.