[3] In 1915, excavations uncovered mule and horse shoes from the time of the Roman Empire.

After the fall of Rome, Vernier was inhabited by Germanic peoples, such as the Burgundians and Franks.

In 1858, the construction of the Lyon-Geneva railway spurred the first major economic boom, leading to the establishment of industries.

In 1896, the Chèvres factory, Europe's first run-of-river hydroelectric complex, began operations, providing electricity.

From 1955 onwards, Vernier experienced significant population growth, with new housing estates like Le Lignon and Les Avanchets, alongside a large influx of immigrants.

[5] In 2020, Vernier's 768 hectares comprised 77.2% for habitats and infrastructure, 8.5% for agriculture, 9.5% for wooded areas, and 4.8% for unproductive land.

[6] Vernier is divided into 6 neighborhoods : It borders Geneva, Le Grand-Saconnex, Meyrin, Satigny, Lancy, Onex, and Bernex.

In 2022, the social assistance rate was 25.0%, and in 2023, 54.1% of the population received health insurance subsidies.

Following the precedent elections, the council was represented as follows : As of  2010[update], Vernier had an unemployment rate of 8.7%.

In the tertiary sector; 2,767 or 39.1% were in wholesale or retail sales or the repair of motor vehicles, 361 or 5.1% were in the movement and storage of goods, 405 or 5.7% were in a hotel or restaurant, 397 or 5.6% were in the information industry, 142 or 2.0% were the insurance or financial industry, 345 or 4.9% were technical professionals or scientists, 375 or 5.3% were in education and 556 or 7.8% were in health care.

The education system in the Canton of Geneva allows young children to attend two years of non-obligatory Kindergarten.

The canton's school system provides two years of non-mandatory kindergarten and requires students to attend six years of primary school, with some of the children attending smaller, specialized classes.