Le Lieu is a municipality in the canton of Vaud in Switzerland, located in the district of Jura-Nord Vaudois in the Vallée de Joux.

Le Lieu is first mentioned in 1155 as loco dompni Poncii heremite ("in the place of lord Poncius the hermit").

[3] Le Lieu has an area, as of 2009[update], of 32.55 square kilometers (12.57 sq mi).

[5] The municipality is located on the eastern shore of Lac de Joux.

The blazon of the municipal coat of arms is Or, a Bar Azure, overall Saint Poncet bearded Argent, garmented Sable, holding a staff of the same in dexter and a Bible of the third.

[9] Most of the population (as of 2000[update]) speaks French (703 or 88.4%), with German being second most common (28 or 3.5%) and Italian being third (20 or 2.5%).

[8] The age distribution, as of 2009[update], in Le Lieu is; 76 children or 9.1% of the population are between 0 and 9 years old and 95 teenagers or 11.4% are between 10 and 19.

[9] The historical population is given in the following chart:[3][13] The entire village of Le Lieu and ISOS village: Le Séchey is designated as part of the Inventory of Swiss Heritage Sites.

[14] In the 2007 federal election the most popular party was the SP which received 28.8% of the vote.

In the federal election, a total of 285 votes were cast, and the voter turnout was 45.2%.

[9] There were 368 residents of the municipality who were employed in some capacity, of which females made up 40.5% of the workforce.

The number of jobs in the primary sector was 35, of which 28 were in agriculture, 5 were in forestry or lumber production and 1 was in fishing or fisheries.

In the tertiary sector; 4 or 7.1% were in wholesale or retail sales or the repair of motor vehicles, 1 was in the movement and storage of goods, 20 or 35.7% were in a hotel or restaurant, 1 was the insurance or financial industry, 1 was a technical professional or scientist, 21 or 37.5% were in education and 3 or 5.4% were in health care.

[9] From the 2000 census[update], 180 or 22.6% were Roman Catholic, while 411 or 51.7% 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.