On 1 January 2021 the former municipality of Les Brenets merged into Le Locle.

[4] Les Brenets had an area, as of 2009[update], of 11.5 square kilometers (4.4 sq mi).

Of the rest of the land, 0.72 km2 (0.28 sq mi) or 6.2% is settled (buildings or roads), 0.43 km2 (0.17 sq mi) or 3.7% is either rivers or lakes and 0.04 km2 (9.9 acres) or 0.3% is unproductive land.

[5] The former municipality is located near Le Locle, on the northwestern slope of the Jura Mountains.

The blazon of the municipal coat of arms is Per fess by a bar chequy Or and Sable, in chief Gules a Chevron raised Argent, and in base Azure, a Waterfall falling from mountains with Pinetrees Vert.

[8] Most of the population (as of 2000[update]) speaks French (1,106 or 95.0%) as their first language, German is the second most common (23 or 2.0%) and Italian is the third (18 or 1.5%).

[8] The historical population is given in the following chart:[4][12] The entire village of Les Brenets is designated as part of the Inventory of Swiss Heritage Sites[13] In the 2007 federal election the most popular party was the SP which received 24.03% of the vote.

In the federal election, a total of 446 votes were cast, and the voter turnout was 53.6%.

[8] There were 574 residents of the municipality who were employed in some capacity, of which females made up 45.8% of the workforce.

In the tertiary sector; 36 or 33.3% were in wholesale or retail sales or the repair of motor vehicles, 10 or 9.3% were in the movement and storage of goods, 18 or 16.7% were in a hotel or restaurant, 2 or 1.9% were the insurance or financial industry, 2 or 1.9% were technical professionals or scientists, 5 or 4.6% were in education and 30 or 27.8% were in health care.

[8] From the 2000 census[update], 394 or 33.8% were Roman Catholic, while 475 or 40.8% belonged to the Swiss Reformed Church.

[17] During the 2010-11 school year, there was one kindergarten class with a total of 23 students in Les Brenets.