[1] It consisted of the region of Val de Ruz and the surrounding Jura Mountains.

Most of the population (as of 2000[update]) speaks French (13,144 or 90.5%) as their first language, German is the second most common (451 or 3.1%) and Italian is the third (255 or 1.8%).

The historical population is given in the following chart:[7] In the 2007 federal election the most popular party was the SP which received 24.22% of the vote.

In the federal election, a total of 5,683 votes were cast, and the voter turnout was 54.8%.

[8] From the 2000 census[update], 3,447 or 23.7% were Roman Catholic, while 6,579 or 45.3% belonged to the Swiss Reformed Church.

[9] During the 2010-11 school year, there were 20 kindergarten classes with a total of 354 students in District du Val-de-Ruz.