Coinsins (French pronunciation: [kwɛ̃zɛ̃]) is a municipality in the district of Nyon in the canton of Vaud in Switzerland.

[3] Coinsins has an area, as of 2009[update], of 2.9 square kilometers (1.1 sq mi).

The blazon of the municipal coat of arms is Azure, on a Bend Or a Lizard Vert.

[9] Most of the population (as of 2000[update]) speaks French (288 or 78.3%), with English being second most common (27 or 7.3%) and German being third (23 or 6.3%).

[10] The age distribution, as of 2009[update], in Coinsins is; 52 children or 13.2% of the population are between 0 and 9 years old and 48 teenagers or 12.2% 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 23.55% of the vote.

In the federal election, a total of 113 votes were cast, and the voter turnout was 47.1%.

[9] There were 215 residents of the municipality who were employed in some capacity, of which females made up 43.7% of the workforce.

In the tertiary sector; 44 or 58.7% were in wholesale or retail sales or the repair of motor vehicles, 19 or 25.3% were in the movement and storage of goods, 7 or 9.3% were in a hotel or restaurant, 1 was in the information industry, 1 was the insurance or financial industry, .

[9] From the 2000 census[update], 120 or 32.6% were Roman Catholic, while 165 or 44.8% 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 1,249 children of which 563 children (45.1%) received subsidized pre-school care.

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