Belmont-sur-Lausanne (French pronunciation: [bɛlmɔ̃ syʁ lɔzan] ⓘ, literally Belmont on Lausanne) is a municipality in the district of Lavaux-Oron in the canton of Vaud in Switzerland.

Belmont-sur-Lausanne is first mentioned in 1228 as Belmunt sowie apud bellum Montem.

[3] Belmont-sur-Lausanne has an area, as of 2009[update], of 2.65 square kilometres (1.02 sq mi).

Of the rest of the land, 0.88 km2 (0.34 sq mi) or 33.2% is settled (buildings or roads).

[5] The municipality is located on a hill above Lake Geneva, east of the Paudèze valley.

The blazon of the municipal coat of arms is Gules, a triple mount Or, in chief Argent three May-beetles proper.

[9] Most of the population (as of 2000[update]) speaks French (2,058 or 87.3%), with German being second most common (139 or 5.9%) and English being third (38 or 1.6%).

[8] The age distribution, as of 2009[update], in Belmont-sur-Lausanne is; 433 children or 13.1% of the population are between 0 and 9 years old and 464 teenagers or 14.1% 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 SP which received 20.75% of the vote.

In the federal election, a total of 916 votes were cast, and the voter turnout was 50.3%.

[9] There were 1,276 residents of the municipality who were employed in some capacity, of which females made up 44.8% of the workforce.

In the tertiary sector; 52 or 21.4% were in wholesale or retail sales or the repair of motor vehicles, 20 or 8.2% were in the movement and storage of goods, 28 or 11.5% were in a hotel or restaurant, 9 or 3.7% were in the information industry, 7 or 2.9% were the insurance or financial industry, 26 or 10.7% were technical professionals or scientists, 4 or 1.6% were in education and 8 or 3.3% were in health care.

[9] From the 2000 census[update], 842 or 35.7% were Roman Catholic, while 905 or 38.4% 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.

[17] During the school year, the political district provided pre-school care for a total of 665 children of which 232 children (34.9%) received subsidized pre-school care.

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