Val-d'Illiez is a municipality in the district of Monthey in the canton of Valais in Switzerland.

Val-d'Illiez has an area, as of 2009[update], of 39.3 square kilometers (15.2 sq mi).

[3] The blazon of the municipal coat of arms is Azure, issuant from base mountains Argent, on them issuant from Coupeaux Vert two Houses Gules and three Pine trees Vert trunked proper, in chief a Cornucopia Or flowered Gules.

The mountain is the Dents du Midi peaks, which dominate the entire Val-d'Illiez.

[7] Most of the population (as of 2000[update]) speaks French (1,351 or 94.6%) as their first language, German is the second most common (25 or 1.8%) and English is the third (15 or 1.1%).

[7] The historical population is given in the following chart:[11] The Maison D’Habitation is listed as a Swiss heritage site of national significance.

[13] In the 2007 federal election the most popular party was the CVP which received 39.47% of the vote.

[15] In the 2007 Swiss Council of States election a total of 634 votes were cast, of which 48 or about 7.6% were invalid.

[7] There were 776 residents of the municipality who were employed in some capacity, of which females made up 39.7% of the workforce.

The number of jobs in the primary sector was 62, of which 54 were in agriculture and 8 were in forestry or lumber production.

In the tertiary sector; 19 or 9.8% were in wholesale or retail sales or the repair of motor vehicles, 48 or 24.7% were in the movement and storage of goods, 44 or 22.7% were in a hotel or restaurant, 5 or 2.6% were in the information industry, 9 or 4.6% were the insurance or financial industry, 12 or 6.2% were technical professionals or scientists, 8 or 4.1% were in education.

[7] From the 2000 census[update], 1,140 or 79.8% were Roman Catholic, while 132 or 9.2% belonged to the Swiss Reformed Church.