Essert-sous-Champvent is a former municipality in the district of Jura-Nord Vaudois of the canton of Vaud in Switzerland.

[1] Essert-sous-Champvent is located in a small valley between Chamblon hill and the foothills of the Jura Mountains.

as of 2009[update], the former municipality had an area of 1.2 square kilometers (0.46 sq mi).

[4] In February 2024, it became the scene of a hostage taking incident, in which an Iranian asylum-seeker was killed.

[5] The blazon of the municipal coat of arms is Paly of six Argent and Azure, two Stumps eradicated crossed in saltire Gules.

[8] Most of the population (as of 2000[update]) speaks French (94 or 71.2%) as their first language, with Portuguese being second most common (28 or 21.2%) and Italian being third (6 or 4.5%).

[9] The age distribution, as of 2009[update], in Essert-sous-Champvent is; 19 children or 12.6% of the population are between 0 and 9 years old and 19 teenagers or 12.6% are between 10 and 19.

[11] About 40.4% of the total households were owner occupied, or in other words did not pay rent (though they may have a mortgage or a rent-to-own agreement).

[8] The historical population is given in the following chart:[3][14] In the 2007 federal election the most popular party was the SVP which received 33.93% of the vote.

The number of jobs in the primary sector was 15, of which 14 were in agriculture and 1 was in forestry or lumber production.

[8] The meter gauge electric Yverdon–Ste-Croix railway line links Essert-sous-Champvent with Yverdon-les-Bains and Sainte Croix.

From the 2000 census[update], 54 or 40.9% were Roman Catholic, while 61 or 46.2% belonged to the Swiss Reformed Church.

In the Vaud cantonal school system, two years of non-obligatory pre-school are provided by the political districts.

The canton's primary school program requires students to attend for four years.