Signy-Avenex (French pronunciation: [siɲi avnɛ] ⓘ) is a municipality in the district of Nyon in the canton of Vaud in Switzerland.

[3] Signy-Avenex has an area, as of 2009[update], of 1.9 square kilometers (0.73 sq mi).

Of the rest of the land, 0.42 km2 (0.16 sq mi) or 21.8% is settled (buildings or roads).

The blazon of the municipal coat of arms is Per bend Gules and Azure, overall a Cross bottony Argent.

[9] Most of the population (as of 2000[update]) speaks French (307 or 78.7%), with English being second most common (46 or 11.8%) and German being third (23 or 5.9%).

[10] The age distribution, as of 2009[update], in Signy-Avenex is; 49 children or 11.6% of the population are between 0 and 9 years old and 42 teenagers or 10.0% 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 25.72% of the vote.

In the federal election, a total of 142 votes were cast, and the voter turnout was 53.4%.

[9] There were 225 residents of the municipality who were employed in some capacity, of which females made up 46.2% of the workforce.

In the tertiary sector; 278 or 55.7% were in wholesale or retail sales or the repair of motor vehicles, 9 or 1.8% were in the movement and storage of goods, 32 or 6.4% were in a hotel or restaurant, 6 or 1.2% were in the information industry, 22 or 4.4% were the insurance or financial industry, 92 or 18.4% were technical professionals or scientists, 13 or 2.6% were in education and 19 or 3.8% were in health care.

[9] From the 2000 census[update], 85 or 21.8% were Roman Catholic, while 173 or 44.4% 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.

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