Valeyres-sous-Montagny is a municipality in the district of Jura-Nord Vaudois of the canton of Vaud in Switzerland.

[3] Valeyres-sous-Montagny has an area, as of 2009[update], of 2.3 square kilometers (0.89 sq mi).

[5] The municipality is located on the left bank of the Brine river, north-west of Yverdon-les-Bains.

The blazon of the municipal coat of arms is Azure, a Bend wavy Argent, in chief a Hand Or, in base a Trefoil of the same.

[9] Most of the population (as of 2000[update]) speaks French (501 or 93.8%) as their first language, with German being second most common (14 or 2.6%) and Italian being third (12 or 2.2%).

[10] The age distribution, as of 2009[update], in Valeyres-sous-Montagny is; 69 children or 10.6% of the population are between 0 and 9 years old and 85 teenagers or 13.1% are between 10 and 19.

[9] The historical population is given in the following chart:[3][13] In the 2007 federal election the most popular party was the SVP which received 27.48% of the vote.

[9] There were 272 residents of the municipality who were employed in some capacity, of which females made up 43.0% of the workforce.

In the tertiary sector; 1 was in the movement and storage of goods, 5 or 23.8% were in a hotel or restaurant, 1 was in the information industry, 3 or 14.3% were technical professionals or scientists, 4 or 19.0% were in education and 1 was in health care.

[9] The meter gauge electric Yverdon–Ste-Croix railway line links Valeyres-sous-Montagny with Yverdon-les-Bains and Sainte Croix.

From the 2000 census[update], 153 or 28.7% were Roman Catholic, while 258 or 48.3% 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.